HomeMy WebLinkAbout2021-10-15 ACHD Development Services Department
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Project/File: Centerville Subdivision/ MPP20-0018/ H-2021-0046
This is an annexation and rezone application to annex 40.49 acres into the City of
Meridian with a R-8, C-C and R-15 zoning and a preliminary plat application to develop
124 single-family lots, .35 79 townhome lots, four 4 plex buildings, '' mufti f,m:'„ '^+9
4 3 commercial lots and 27 common lots on 38.95 acres.
Lead Agency: City of Meridian
Site address: 4111 E. Amity Road and 5200 S. Hillsdale Avenue
Staff Approval: July 26, 2021, Updated October 15, 2021 updates are highlighted
Applicant: Becky McKay
Engineering Solutions, LLP Vicinity Map
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1029 N. Rosario Street, Suite 100 � g�
Meridian, ID 83642 r�► '°'' x
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Representative: Same as above _ _
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Staff Contact: Paige Bankhead, E.I. k
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Phone: 387-6293 � �, % IO,,'.� II`61g".�
E-mail: pbankhead(��achdidaho.org V�
A. Findinqs of Fact
1. Description of Application: The applicant is requesting approval of an annexation and rezone
application to annex 40.49 acres into the City of Meridian with a R-8, C-C and R-15 zoning and a
preliminary plat application to develop 124 single-family lots, 35 79 townhome lots, four 4 plex
buildings, 2 multi farnil„ at 4 3 commercial lots and 27 common lots on 38.95 acres.
The City of Meridian's Future Land Use Plan designates this area as Old Town and Medium Density
Residential.
2. Description of Adjacent Surrounding Area:
Direction I Land Use Zoning
North Medium Density Residential R-8
South Medium Density Residential R-8
East Medium Density Residential (City of Boise R-4
West Neighborhood Business C-N
3. Site History: ACHD has not previously reviewed this site for a development application.
4. Adjacent Development: The following developments are pending or underway in the vicinity of
the site:
1 Centerville Subdivision
M P P20-0018/ H-2021-0046
• Shelburne South Subdivision, 99 single-family lots and 19 common lots on 27.9 acres located
directly north of the site and was approved by ACHD on December 23, 2019.
5. Transit: Transit services are not available to serve this site.
6. Pathway Crossings: United States Access Board R304.5.1.2 Shared Use Paths. In shared use
paths, the width of curb ramps runs and blended transitions shall be equal to the width of the shared
use path.
AASHTO's Guidelines for the Development of Bicycle Facilities 5.3.5 Other Intersection
Treatments: The opening of a shared use path at the roadway should be at least the same width
as the shared use path itself. If a curb ramp is provided, the ramp should be the full width of the
path, not including any flared sides if utilized. Detectable warnings should be placed across the full
width of the ramp.
FHWA's "Designing Sidewalks and Trails for Access" (1999) reflected common ADA-related
concepts: Chapter 6, Page 16-6: The width of the ramp should be at least as wide as the average
width of the trail to improve safety for users who will be traveling at various speeds. In addition, the
overall width of the trail should be increased, so the curb ramp can be slightly offset to the side.
The increased width reduces conflict at the intersection by providing more space for users at the
bottom of the ramp.
7. New Center Lane Miles: The proposed development includes 1.10 centerline miles of new public
road.
8. Impact Fees: There will be an impact fee that is assessed and due prior to issuance of any building
permits. The assessed impact fee will be based on the impact fee ordinance that is in effect at that
time. The impact fee assessment will not be released until the civil plans are approved by ACHD.
9. Capital Improvements Plan (CIP)/ Integrated Five Year Work Plan (IFYWP):
• Eagle Road is scheduled in the IFYWP to be widened to 5-lanes from Amity Road to Victory
Road in 2021-2022.
• Cloverdale Road is schedule in the IFYWP to be widened to 5-lanes from Amity Road to
Victory Road in 2025.
• The intersection of Eagle Road and Amity Road is scheduled in the IFYWP to be
reconstructed as a multi-lane roundabout with 4-lanes on the north leg, 4-lanes on the south,
4-lanes east, and 4-lanes on the west leg and is currently under construction.
• The intersection of Cloverdale Road and Amity Road is scheduled in the IFYWP to be
reconstructed as a multi-lane roundabout with 4-lanes on the north leg, 4-lanes on the south
leg, 4-lanes on the north leg, 2-Ianeson the east leg and 2-Ianeson the west leg in 2025.
• Amity Road is listed in the CIP to be widened to 3-lanes from Eagle Road to Cloverdale Road
between 2036 and 2040.
10. Roadways to Bikeways Master Plan: ACHD's Roadways to Bikeways Master Plan (BMP) was
adopted by the ACHD Commission in May of 2009 and was update in 2018. The plan seeks to
implement the Planned Bicycle Network to support bicycling as a viable transportation option for
Ada County residents with a wide range of ages and abilities, maintain bicycle routes in a state of
good repair in order to ensure they are consistently available for use, promote awareness of existing
bicycle routes and features and support encouragement programs and to facilitate coordination and
cooperation among local jurisdictions in implementing the Roadways to Bikeways Plan
recommendations.
• The BMP identifies Amity Road as a Level 3 facility that will be constructed as part of a
future ACHD project.
2 Centerville Subdivision
M P P20-0018/ H-2021-0046
• The BMP identifies Hillsdale Avenue, a collector road, as a Level 1 facility. Hillsdale Avenue
is currently striped with bike lanes on both sides of the road.
B. Traffic Findings for Consideration
1. Trip Generation: This development is estimated to generate 2,599 additional vehicle trips per day;
266 additional vehicle trips per hour in the PM peak hour, based on the traffic impact study.
2. Traffic Impact Study
CR Engineering, Inc. prepared a traffic impact study for the proposed Centerville Subdivision. An
executive summary of the findings as presented by CR Engineering, Inc. can be found as
Attachment 3. The executive summary is not the opinion of ACHD staff. ACHD has reviewed
the submitted traffic impact study for consistency with ACHD policies and practices, and may have
additional requirements beyond what is noted in the summary. ACHD Staff comments on the
submitted traffic impact study can be found below under staff comments.
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Intersections (blue) and roadway segments (green) included in the study
a. Policy
Mitigation Proposals: Mitigation recommendations shall be provided within the report. At a
minimum, for each roadway segment and intersection that does not meet the minimum
acceptable level of service planning threshold or v/c ratio, the report must discuss feasible
measures to avoid or reduce the impact to the system. To be considered adequate, measures
should be specific and feasible. Mitigation may also include:
• Revision to the Phasing Plan to coincide with the District's planning Capital Projects.
• Reducing the scope and/or scale of the project.
Alternative Mitigation Measures: 7106.7.3 states that if traditional mitigation measures
such as roadway widening and intersection improvements are infeasible as determined by
ACHD, the TIS may recommend alternative mitigation measures. Alternative mitigation
measures shall demonstrate that impacts from the project will be offset.
3 Centerville Subdivision
M P P20-0018/ H-2021-0046
• If the impacted roadway segments and/or intersections are programmed as funded in
the Integrated Five Year Work Plan (IFYWP) or the Capital Improvements Plan (CIP);
no alternative mitigation is required.
• If the impacted roadway segments and/or intersections are not programmed in either
the IFYWP or the CIP; the applicant may (i) analyze the shoulder hour and (ii) provide
a safety analysis to determine alternative mitigation requirements.
o If the impacted roadway segments and intersections meet the minimum
acceptable level of service planning thresholds in the shoulder hour the
applicant may suggest feasible alternative mitigation such as: sidewalks, bike
facilities, connectivity, safety improvements, etc. within 1.5 miles of the
proposed development.
o If the shoulder hour planning thresholds are exceeded the applicant may
request to enter into a Development Agreement and pay into the Priority
Corridor Fund an amount determined by the ACHD to offset impacts from the
project.
• Alternative Mitigation may also include:
o Revision to the Phasing Plan to coincide with the District's future Capital
Projects.
o Reducing the scope and/or scale of the project.
Level of Service Planning Thresholds: District Policy 7206.4.1 states that, Level of Service
Planning Thresholds have been established for principal arterials and minor arterials within
ACHD's Capital Improvement Plan and are also listed in section 7106. Unless otherwise
required to provide a Traffic Impact Study under section 7106, a proposed development with
site traffic less than 10% of the existing downstream roadway or intersection peak hour traffic
shall not be required to provide mitigation for a roadway or intersection that currently exceeds
the minimum acceptable level of service planning threshold or V/C ratio.
b. Staff Comments/Recommendations: Staff has reviewed the submitted traffic impact study
(TIS) and generally agrees with the findings and recommendations. The table below
summarizes the improvements required with the development based on the study and District
Policy. The following sections summarize staffs recommendations based on the study's
findings and recommendations.
Summary of Improvements Re uired by ACHD
Intersection Improvement Threshold
Hillsdale Avenue/Amity Road Interim Signal 60 PM peak hour trips
Amity Road/Amorita Avenue Dedicated eastbound right-turn With first phase of
lane and westbound left-turn development
lane
Amity Road
The study shows that Amity Road from Eagle Road to Cloverdale Roads exceeds ACHD LOS
thresholds for a 2-lane arterial roadway in the PM peak hour, but meets thresholds for a 3-lane
arterial roadway. This segment of Amity Road has center left turn lanes at all major subdivision
access points, allowing the roadway to function as a 3-lane minor arterial roadway and meet
LOS thresholds. However, the study shows that this segment of Amity Road will exceed the
thresholds for a 3-lane arterial roadway under the 2025 background and total traffic conditions
when 97 PM peak hour trips are added to the road segment from Eagle Road to the site access
and 105 PM peak hour trips are added to the segment from the site access to Cloverdale Road.
This roadway is constrained to 3-lanes based on the Master Street Map.
4 Centerville Subdivision
M P P20-0018/ H-2021-0046
The peak hour site traffic for Amity Road between the site and Eagle Road is 9.9% of the 2025
total traffic, and 6.7% of the 2025 total traffic from the site to Cloverdale Road. District Policy for
alternative mitigation measures states that if the site traffic is less than 10% of the total traffic
conditions for intersections or roadways segments that exceed ACHD LOS thresholds, or the
roadway segment or intersection is listed in the CIP then improvements are not required. In
addition, it is infeasible for the applicant to widen this segment of Amity Road due to right-of-
way constraints and the Master Street Map constrains this roadway to 3-lanes. Therefore, staff
does not recommend that the applicant be required to construct any additional improvements
to this segment of Amity Road with this development application.
Eagle Road/Amity Road Intersection
The intersection of Eagle Road and Amity Road is currently being improved by ACHD as a
multi-lane roundabout with 4-lanes on each leg per the IFYWP. The study shows that the
intersection will meet ACHD's LOS thresholds under the existing and 2025 background traffic
conditions. The study recommends constructing a southbound right-turn lane at the intersection
to mitigate the 2025 total traffic conditions. The peak hour site traffic at this intersection is 4.5%
of the 2025 total traffic. District Policy for alternative mitigation measures states that if the site
traffic is less than 10% of the total traffic conditions for an intersection or roadway segment that
exceeds ACHD LOS thresholds, improvements are not required. Therefore, staff does not
recommend that the applicant be required to construct any additional improvements to the
intersection of Eagle Road/Amity Road with this development application.
Cloverdale Road/Amity Road Intersection
The study recommends reconstructing the intersection as a multi-lane roundabout or construct
dedicated southbound and westbound right-turn lanes to mitigate the 2025 total traffic
conditions. The peak hour site traffic at this intersection is 4.3% of the 2025 total traffic
conditions and this intersection is listed in the IFYWP to be improved as a multi-lane roundabout
in 2025. District Policy for alternative mitigation measures states that if the site traffic is less
than 10% of the total traffic conditions for an intersection or roadway segment in the study that
exceeds ACHD LOS thresholds or the intersection or roadway segment is listed in the CIP or
IFYWP, improvements are not required. Therefore, staff does not recommend that the applicant
be required to construct any additional improvements to the intersection of Cloverdale
Road/Amity Road with this development application.
Hillsdale Avenue/Amity Road
The study recommends signalizing the intersection of Hillsdale Avenue and Amity Road, or
reconstructing the intersection as a single-lane roundabout, when 60 PM peak hour trips are
added to the intersection. This intersection is shown as a single-lane roundabout on the Master
Street Map, however, this is not enough existing right-of-way to reconstruct the intersection as
a single-lane roundabout. Therefore, the applicant should be required to install an interim signal
at this intersection prior to ACHD's final approval and signature on the final plat that generates
61 PM peak hour trips, or has 61 single family lots, consistent with the study recommendations,
see Finding 2. The intersection is currently improved with a dedicated eastbound right-turn lane,
northbound right-turn lane, northbound left-turn lane and an east/west center left-turn lane that
extends through the intersection. The applicant will be required to dedicate additional right-of-
way abutting the site for the future single-lane roundabout.
Site Access
The study recommends constructing a dedicated eastbound right-turn lane and dedicated
westbound left-turn lane on Amity Road when Amorita Avenue is constructed to intersect Amity
Road. The applicant should be required to construct the turn lanes when Amorita Avenue is
constructed to intersect Amity Road consistent with the study's recommendation. Shelburne
South Subdivision directly north of the site was required to construct a center left turn lane on
5 Centerville Subdivision
M P P20-0018/ H-2021-0046
Amity Road at Amorita Avenue that tapers to the east. The applicant should coordinate with
Shelburne South Subdivision for the construction of the westbound left-turn lane on Amity Road.
The study indicates that turn lanes are not warranted on Hillsdale Avenue at Hill Park Street.
The applicant has proposed to construct a 38-foot wide curb return type private drive proposed
on Hillsdale Avenue 380-feet south of Amity Road. This meets District Policy and should be
approved, as proposed.
Traffic Distribution
The adjacent neighborhoods to the south of the site have voiced concerns about potential cut-
through traffic from this development through their neighborhoods to reach arterial roadways,
Amity Road and Cloverdale Road. The study notes that the circulation proposed for the
development will provide direct access to Hillsdale Avenue and Amity Road for the
development. The site traffic is not expected to travel to the south to reach Amity Road or
Cloverdale Road since direct access to Amity Road is available through the site via Amorita
Avenue and Hillsdale Avenue. It is not practical that the traffic from the site will travel to the
south and cut through the adjacent neighborhoods to reach Amity Road and Cloverdale Road
since it would require numerous turns and out of direction travel on local neighborhood streets.
In addition, the intersection of Amity Road and Cloverdale Road is scheduled in the IFYWP to
be improved in 2025, which is expected to improve intersection operations and reduce the
demand for cut-through routes in the area.
Pedestrian Crossing — Hillsdale Avenue
The adjacent neighborhoods have also expressed concerns about safe routes to the school
and YMCA directly across Hillsdale Avenue to the west of the site. Staff recommends that the
applicant consider striping a crosswalk and installing a rapid rectangular flashing beacon
(RRFB) on Hillsdale Avenue at the intersection with Rockhampton Street or Hill Park Street to
provide a safe crossing for pedestrians to the YMCA and school. The applicant will be
responsible for the design, hardware, and installation of pedestrian crossing and would be
required to enter into a signal agreement with ACHD. See Finding 6.
3. Condition of Area Roadways
Traffic Count is based on Vehicles per hour(VPH)
Functional PM Peak PM Peak Hour Existing
Roadway Frontage Classification Hour Level of Service Plus
Traffic Count Project
Amity Road Better than "E"
(between the site 1,300-feet Minor Arterial 615 for 3-lane arterial, „F„
and Eagle Road) "F" for 2-lane
arterial
Amity Road Better than "E"
(from the site to 1,300-feet Minor Arterial 623 for 3-Iane arterial, „F„
Cloverdale Road) "F" for 2-lane
arterial
* Acceptable level of service for a two-lane minor arterial is "E" (575 VPH).
* Acceptable level of service for a three-lane minor arterial is "E" (720 VPH).
* Acceptable level of service for a two-lane collector is "D" (425 VPH).
4. Average Daily Traffic Count (VDT)
Average daily traffic counts are based on ACHD's most current traffic counts.
6 Centerville Subdivision
M P P20-0018/ H-2021-0046
• The average daily traffic count for Amity Road from the site to Eagle Road was 7,416 on
08/29/2019.
• The average daily traffic count for Amity Road from the site to Cloverdale Road was 6,718 on
08/26/2019.
C. Findings for Consideration
1. South Meridian Transportation Plan
The South Meridian Transportation Plan (SMTP) is a long range planning tool used to identify future
roadway, intersection, and corridor needs in the South Meridian Area, providing a framework for
future roadway improvements based on the land use designations. The plan was created in
collaboration with the City of Meridian and was adopted by the ACHD Commission in September of
2009. The SMTP shows Amity Road east of Eagle Road as a 3-lane arterial roadway, but
recommends preserving right-of-way for a 5-lane arterial roadway for this segment due to the
potential for additional traffic demands beyond 2030. The Master Street Map shows 78-feet of right-
of-way preservation for a 3-lane arterial roadway for this segment of Amity Road. The Master Street
Map is updated every 2 years and was recently updated and adopted by the ACHD Commission in
October 2020. The applicant will be required to dedicate additional right-of-way abutting the site
consistent with the Master Street Map since it is the most recently updated guiding document
accepted by the ACHD Commission.
2. Amity Road/Hillsdale Avenue Intersection — Signal
The study recommends signalizing the intersection of Amity Road and Hillsdale Avenue or
reconstructing the intersection as a single lane roundabout when 60 PM peak hour trips are added
to the intersection, or 60 single family lots are platted. This intersection is shown on the Master
Street Map as a single-lane roundabout, however, there is not enough right-of-way to construct a
single-lane roundabout with this development. Therefore, the applicant should be required to
signalize the intersection as a 3 X 3 interim signal prior to ACHD's final approval and signature on
the final plat that contains the 61 It
single family lot or the final plat the generates 61 PM peak hour
trips. In order to install the interim signal at the Amity Road/Hillsdale Avenue intersection, the
applicant will need to obtain plan approval and enter into a signal agreement with ACHD. ACHD
will provide the signal hardware since ACHD has a signal planned at this intersection.
The signal agreement should include requirements that the intersection be designed as a 3 X 3
intersection in its current configuration with the eastbound left turn lane striped out; that the
applicant is responsible for all costs associated with the design and installation of the interim
signal and that interim improvements are not eligible for reimbursement by ACHD.
In order to ensure the Amity Road/Hillsdale Avenue intersection will be improved when warranted,
the following items must be in place prior to plans acceptance of the final plat that contains the
61 It single family lot, or generates 61 PM peak hour trips:
• Signal Agreement;
• Full design and approved plans for the intersection.
3. Amity Road/Hillsdale Avenue — MSM Roundabout
a. ACHD Master Street Map: ACHD Policy Section 3111.1 requires the Master Street Map (MSM)
guide the right-of-way acquisition, collector street requirements, roundabout requirements, and
specific roadway features required through development. A new roundabout was identified on
the MSM. The new single-lane roundabout is planned at the mid-mile at the Amity Road/Hillsdale
Avenue intersection.
7 Centerville Subdivision
MPP20-0018/ H-2021-0046
b. Staff comments/Recommendation: The Master Street Map shows a single-lane roundabout
located at the intersection of Amity Road and Hillsdale Avenue. Additional right-of-way should
be dedicated to accommodate the future construction of the single-lane roundabout as shown
below; the placement of the roundabout should be shifted to so that the south leg aligns with the
Hillsdale Avenue. The template for a single-lane roundabout can be found as Attachment 4.
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4. Adjacent Neighborhood Concerns
The adjacent neighborhoods to the south of the site have voiced concerns about potential cut-
through traffic from this development through their neighborhoods in order to reach arterial
roadways, Amity Road and Cloverdale Road, and are concerned about the gap in sidewalk on the
west side of Hillsdale Avenue just north of the school.
The traffic impact study notes that the circulation proposed for the development will provide direct
routes to Hillsdale Avenue and Amity Road for the development. The site traffic is not expected to
travel to the south to reach Amity Road or Cloverdale Road since direct access to Amity Road to
reach Cloverdale Road is available through the site via Amorita Avenue and Hillsdale Avenue. It is
not practical that the site traffic will travel to the south and cut through the adjacent neighborhoods
to reach Amity Road and Cloverdale Road since it would require numerous turns and out of direction
travel on local neighborhood streets.
In addition, the intersection of Amity Road and Cloverdale Road is scheduled in the IFYWP to be
improved in 2025, which is expected to improve intersection operations and would reduce the
demand for cut-through routes in the area.
8 Centerville Subdivision
M P P20-0018/ H-2021-0046
Sidewalk cannot be constructed with this development to fill the gap in improvements on the west
side of Hillsdale Avenue abutting the existing residence shown below at this time due the life estate
for that home. The existing residence was originally part of a larger parcel that was recently
subdivided for the YMCA and the residence known as Healthy Living Subdivision and was approved
by ACHD in 2017. As part of ACHD's action on that development, sidewalk was not required to be
constructed abutting the life estate and when the life estate is removed, sidewalk is required to be
constructed on Hillsdale Avenue to fill in the gap in improvements. If sidewalk were permitted to be
constructed abutting the life estate, it would have been constructed with the development of Healthy
Living Subdivision.
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Gap in Sidewalk on Hillsdale Avenue
The adjacent neighborhoods have also expressed concerns about safe routes to the school and
the YMCA directly across the Hillsdale Avenue to the west of the site. Staff recommends that the
applicant consider striping a crosswalk and installing a rapid rectangular flashing beacon (RRFB)
on Hillsdale Avenue at the intersection with Rockhampton Street or Hill Park Street to provide a
safe crossing for pedestrians to the YMCA and school, see the figure below. The applicant would
be responsible for the design, hardware, and installation of pedestrian crossing and would be
required to enter into a signal agreement with ACHD. The applicant has indicated that they are
supportive of this recommendation, but do not have a location at this time. See Finding 6.
9 Centerville Subdivision
M P P20-0018/ H-2021-0046
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Potential locations for an RRFB pedestrian crossing on Hillsdale Avenue
5. Amity Road — Minor Arterial Road
a. Existing Conditions: Amity Road is improved with 2-travel lanes with a center left turn lane at
Hillsdale Avenue and no curb, gutter or sidewalk abutting the site. There is 55 to 62-feet of
right-of-way for Amity Road (28-feet from centerline).
b. Policy:
Arterial Roadway Policy: District Policy 7205.2.1 states that the developer is responsible for
improving all street frontages adjacent to the site regardless of whether or not access is taken
to all of the adjacent streets.
Master Street Map and Typology Policy: District Policy 7205.5 states that the design of
improvements for arterials shall be in accordance with District standards, including the Master
Street Map and Livable Streets Design Guide. The developer or engineer should contact the
District before starting any design.
Street Section and Right-of Way Width Policy: District Policy 7205.2.1 & 7205.5.2 states
that the standard 3-lane street section shall be 46-feet (back-of-curb to back-of-curb) within 70
feet of right-of-way. This width typically accommodates a single travel lane in each direction, a
continuous center left-turn lane, and bike lanes.
Right-of-Way Dedication: District Policy 7205.2 states that The District will provide
compensation for additional right-of-way dedicated beyond the existing right-of-way along
arterials listed as impact fee eligible in the adopted Capital Improvements Plan using available
impact fee revenue in the Impact Fee Service Area.
No compensation will be provided for right-of-way on an arterial that is not listed as impact fee
eligible in the Capital Improvements Plan.
The District may acquire additional right-of-way beyond the site-related needs to preserve a
corridor for future capacity improvements, as provided in Section 7300.
10 Centerville Subdivision
MPP20-0018/ H-2021-0046
Sidewalk Policy: District Policy 7205.5.7 requires a concrete sidewalk at least 5-feet wide to
be constructed on both sides of all arterial streets. A parkway strip at least 6-feet wide between
the back-of-curb and street edge of the sidewalk is required to provide increased safety and
protection of pedestrians. Consult the District's planter width policy if trees are to be placed
within the parkway strip. Sidewalks constructed next to the back-of-curb shall be a minimum of
7-feet wide.
Detached sidewalks are encouraged and should be parallel to the adjacent roadway.
Meandering sidewalks are discouraged.
A permanent right-of-way easement shall be provided if public sidewalks are placed outside of
the dedicated right-of-way. The easement shall encompass the entire area between the right-
of-way line and 2-feet behind the back edge of the sidewalk. Sidewalks shall either be located
wholly within the public right-of-way or wholly within an easement.
ACHD Master Street Map: ACHD Policy Section 3111.1 requires the Master Street Map
(MSM) guide the right-of-way acquisition, arterial street requirements, and specific roadway
features required through development. This segment of Amity Road is designated in the MSM
as a Residential Arterial with 3-lanes and on-street bike lanes, a 46-foot street section within
78-feet of right-of-way.
c. Applicant Proposal: The applicant has proposed to dedicate additional right-of-way for Amity
Road abutting the site to total 37-feet from the centerline of the roadway and construct a 10-
foot wide concrete multi-use pathway located outside of the right-of-way.
d. Staff Comments/Recommendations: The applicant should be required to dedicate additional
right-of-way for Amity Road abutting the site to total 39-feet from the centerline of the roadway
consistent with the MSM and widen the pavement to 17-feet from the centerline of the roadway
with a 3-foot wide gravel shoulder where deficient abutting the site.
The applicant's proposal to construct a 10-foot wide multi-use pathway abutting the site exceeds
District Policy, which only requires 5-foot wide detached or 7-foot wide attached concrete
sidewalk. However, staff is supportive of the applicant's proposal due to the fact that it is the
desire and direction of the ACHD Commission to construct 10-foot wide multi-use pathways on
arterial roadways with new development. An interim policy is currently being drafted to
implement this requirement with new developments. However, since this is currently not
required by District Policy, the applicant should be required at a minimum to construct a 5-foot
wide detached concrete sidewalk located a minimum of 32-feet from the centerline of the
roadway consistent with the current District Policy. For detached sidewalk or multi-use pathways
located outside of the right-of-way, the applicant should be required to provide a permanent
right-of-way easement that extends from the right-of-way line to 2-feet behind the multi-use
pathway or sidewalk.
The applicant should be required to construct a dedicated eastbound right-turn lane and
westbound left-turn lane on Amity Road at Amorita Avenue when it is constructed to intersect
Amity Road, consistent with the study recommendations. The applicant should coordinate the
construction of the westbound left-turn lane with Shelburne South Subdivision directly north of
the site since this subdivision was required by ACHD to construct a center left turn lane on Amity
Road at Amorita Road that is proposed to taper to the east. The construction plans for this turn
lane have been approved by ACHD.
6. Hillsdale Avenue and Hill Park Street — Collector Roads
a. Existing Conditions: Hillsdale Avenue is improved with 2-travel lanes and 3-lanes at Amity
Road, vertical curb, gutter and no sidewalk abutting the site. There is 40 to148-feet of right-of-
way for Hillsdale Avenue (22 to 65-feet from centerline).
b. Policy:
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M P P20-0018/ H-2021-0046
Collector Street Policy: District policy 7206.2.1 states that the developer is responsible for
improving all collector frontages adjacent to the site or internal to the development as required
below, regardless of whether access is taken to all of the adjacent streets.
Master Street Map and Typologies Policy: District policy 7206.5 states that if the collector
street is designated with a typology on the Master Street Map, that typology shall be considered
for the required street improvements. If there is no typology listed in the Master Street Map,
then standard street sections shall serve as the default.
Street Section and Right-of-Way Policy: District policy 7206.5.2 states that the standard
right-of-way width for collector streets shall typically be 50 to 70-feet, depending on the location
and width of the sidewalk and the location and use of the roadway. The right-of-way width may
be reduced, with District approval, if the sidewalk is located within an easement; in which case
the District will require a minimum right-of-way width that extends 2-feet behind the back-of-
curb on each side.
The standard street section shall be 46-feet (back-of-curb to back-of-curb). This width typically
accommodates a single travel lane in each direction, a continuous center left-turn lane, and bike
lanes.
Residential Collector Policy: District policy 7206.5.2 states that the standard street section
for a collector in a residential area shall be 36-feet (back-of-curb to back-of-curb). The District
will consider a 33-foot or 29-foot street section with written fire department approval and taking
into consideration the needs of the adjacent land use, the projected volumes, the need for
bicycle lanes, and on-street parking.
Sidewalk Policy: District policy 7206.5.6 requires a concrete sidewalk at least 5-feet wide to
be constructed on both sides of all collector streets. A parkway strip at least 6-feet wide between
the back-of-curb and street edge of the sidewalk is required to provide increased safety and
protection of pedestrians. Consult the District's planter width policy if trees are to be placed
within the parkway strip. Sidewalks constructed next to the back-of-curb shall be a minimum of
7-feet wide.
Detached sidewalks are encouraged and should be parallel to the adjacent roadway.
Meandering sidewalks are discouraged.
A permanent right-of-way easement shall be provided if public sidewalks are placed outside of
the dedicated right-of-way. The easement shall encompass the entire area between the right-
of-way line and 2-feet behind the back edge of the sidewalk. Sidewalks shall either be located
wholly within the public right-of-way or wholly within an easement.
Minor Improvements Policy: District Policy 7203.3 states that minor improvements to existing
streets adjacent to a proposed development may be required. These improvements are to
correct deficiencies or replace deteriorated facilities. Included are sidewalk construction or
replacement; curb and gutter construction or replacement; replacement of unused driveways
with curb, gutter and sidewalk; installation or reconstruction of pedestrian ramps; pavement
repairs; signs; traffic control devices; and other similar items.
ACHD Master Street Map: ACHD Policy Section 3111.1 requires the Master Street Map
(MSM) guide the right-of-way acquisition, collector street requirements, and specific roadway
features required through development. This segment of Hillsdale Avenue is designated in the
MSM as a Residential Collector with 2-lanes and on-street bike lanes, a 36-foot street section
within 50-feet of right-of-way.
Landscape Medians Policy: District policy 7206.5.16 states that landscape medians are
permissible where adequate pavement width is provided on each side of the median to
accommodate the travel lanes and where the following is provided:
12 Centerville Subdivision
M P P20-0018/ H-2021-0046
• The median is platted as right-of-way owned by ACHD.
• The width of an island near an intersection is 12-feet maximum for a minimum distance of
150-feet. Beyond the 150-feet, the island may increase to a maximum width of 30-feet.
• At an intersection that is signalized or is to be signalized in the future, the median width
shall be reduced to accommodate the necessary turn lane storage and tapers.
• The Developer or Homeowners Association shall apply for a license agreement if
landscaping is to be placed within these medians.
• The license agreement shall contain the District's requirements of the developer including,
but not limited to, a "hold harmless" clause; requirements for maintenance by the
developer; liability insurance requirements; and restrictions.
• Vertical curbs are required around the perimeter of any raised median. Gutters shall slope
away from the curb to prevent ponding.
c. Applicant Proposal: The applicant has proposed to construct a 5-foot wide detached concrete
sidewalk with a minimum 8-foot wide planter strip on Hillsdale Avenue abutting the site. The
sidewalk is proposed to be located outside of the right-of-way.
The applicant has proposed to construct Hill Park Street as a 36-foot wide collector street
section with vertical curb, gutter, 8-foot wide planter strips within 47-feet of right-of-way and 5-
foot wide detached concrete sidewalks located outside of the right-of-way.
The applicant has proposed to construct a 10-foot wide landscaped median at the entrance of
Hill Park Street in order to restrict the western most driveways on Hill Park Street to right-in/right-
out only.
The applicant has proposed to stripe a crosswalk across Hill Park Street on the east side of the
western most driveways.
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13 Centerville Subdivision
M P P20-0018/ H-2021-0046
d. Staff Comments/Recommendations: The applicant's proposal meets District Policy and
should be approved, as proposed. The applicant should be required to construct the entry
portion of Hill Park Street with a 10-foot wide landscaped median, as proposed, that extends
from the entrance of Hill Park Street to 75-feet to the east beyond the edge of the western
driveways and 20-foot wide travel lanes on either side of the median with vertical curb, gutter
and 5-foot wide detached or 7-foot wide attached concrete sidewalk within right-of-way that
extends to 2-feet behind the back of sidewalk. If street trees are desired, an 8-foot wide
planter strip is required. For detached sidewalk located outside of the right-of-way, should be
required to provide a permanent right-of-way easement that extends from the right-of-way line
to 2-feet behind the back of sidewalk.
The applicant should be required to move to the crosswalk to the west so that it aligns the with
the north/south sidewalk/pathway and extends from the corners of the driveways across Hill
Park Street, install pedestrian crossing signs in advance of the crossing and at the crossing,
and install street lighting at the crossing. On-street parking will not be allowed on this
roadway.
The applicant should be required to replace any broken segments of curb and gutter abutting
the site on Hillsdale Avenue consistent with the District's Minor Improvements Policy.
Hillsdale Avenue Pedestrian Crossing
The adjacent neighborhoods have expressed concerns about safe routes to school and the
YMCA directly across the street from the site. Staff recommends that the applicant consider
striping a crosswalk and installing a rapid rectangular flashing beacon (RRFB) on Hillsdale
Avenue south of the intersection with Rockhampton Street or Hill Park Street to provide a safe
crossing for pedestrians to the school and the YMCA. The applicant has indicated that they are
supportive of this recommendation, but has not yet finalized plans for the crossing. The
applicant would be responsible for the design, hardware and installation of pedestrian crossing
and would enter into a signal agreement with ACHD.
If the applicant chooses to install an RRFP on Hillsdale Avenue at Rockhampton Street or Hill
Park Street, the applicant will need to obtain plan approval, purchase the signal equipment, and
enter into a signal agreement with ACHD. The applicant will need to order and purchase the
signal hardware as ACHD does not have these materials available for this project.
The signal agreement should include requirements that the applicant is responsible for all costs
associated with the hardware, design, and installation of the flashing beacon, and that this
improvement is not eligible for reimbursement by ACHD.
In order to ensure the RRFB with intersection lighting on Hillsdale Avenue is installed, the
following items must be in place prior to plans acceptance.
• Signal Agreement
• Full design and approved plans for the crossing
7. Internal Local Roads
a. Existing Conditions: There are no local roadways within the site. There is one local street,
Beachfield Avenue, that stubs to the site's south property line and another local street,
Macumbo Street, that stubs to the site's east property line.
b. Policy:
Local Roadway Policy: District Policy 7207.2.1 states that the developer is responsible for
improving all local street frontages adjacent to the site regardless of whether or not access is
taken to all of the adjacent streets.
14 Centerville Subdivision
M P P20-0018/ H-2021-0046
Street Section and Right-of-Way Policy: District Policy 7207.5 states that right-of-way widths
for all local streets shall generally not be less than 47-feet wide and that the standard street
section shall be 33-feet (back-of-curb to back-of-curb).
Standard Urban Local Street-33-foot Street Section and Right-of-way Policy: District
Policy 7207.5.2 states that the standard street section shall be 33-feet (back-of-curb to back-of-
curb)for developments with any buildable lot that is less than 1 acre in size. This street section
shall include curb, gutter, and minimum 5-foot wide concrete sidewalks on both sides and shall
typically be constructed within 47-feet of right-of-way.
For the City of Kuna and City of Star: Unless otherwise approved by Kuna or Star, the standard
street section shall be 36-feet (back-of-curb to back-of-curb) for developments with any
buildable lot that is less than 1 acre in size. This street section shall include curb, gutter, and
minimum 5-foot wide concrete sidewalks on both sides and shall typically be constructed within
50-feet of right-of-way.
Continuation of Streets Policy: District Policy 7207.2.4 states that an existing street, or a
street in an approved preliminary plat, which ends at a boundary of a proposed development
shall be extended in that development. The extension shall include provisions for continuation
of storm drainage facilities. Benefits of connectivity include but are not limited to the following:
• Reduces vehicle miles traveled.
• Increases pedestrian and bicycle connectivity.
• Increases access for emergency services.
• Reduces need for additional access points to the arterial street system.
• Promotes the efficient delivery of services including trash, mail and deliveries.
• Promotes appropriate intra-neighborhood traffic circulation to schools, parks,
neighborhood commercial centers, transit stops, etc.
• Promotes orderly development.
Sidewalk Policy: District Policy 7207.5.7 states that five-foot wide concrete sidewalk is
required on both sides of all local street, except those in rural developments with net densities
of one dwelling unit per 1.0 acre or less, or in hillside conditions where there is no direct lot
frontage, in which case a sidewalk shall be constructed along one side of the street. Some local
jurisdictions may require wider sidewalks.
The sidewalk may be placed next to the back-of-curb. Where feasible, a parkway strip at least
8-feet wide between the back-of-curb and the street edge of the sidewalk is recommended to
provide increased safety and protection of pedestrians and to allow for the planting of trees in
accordance with the District's Tree Planting Policy. If no trees are to be planted in the parkway
strip, the applicant may submit a request to the District, with justification, to reduce the width of
the parkway strip.
Detached sidewalks are encouraged and should be parallel to the adjacent roadway.
Meandering sidewalks are discouraged.
A permanent right-of-way easement shall be provided if public sidewalks are placed outside of
the dedicated right-of-way. The easement shall encompass the entire area between the right-
of-way line and 2-feet behind the back edge of the sidewalk. Sidewalks shall either be located
wholly within the public right-of-way or wholly within an easement.
Landscape Medians Policy: District policy 7207.5.16 states that landscape medians are
permissible where adequate pavement width is provided on each side of the median to
accommodate the travel lanes and where the following is provided:
15 Centerville Subdivision
M P P20-0018/ H-2021-0046
• The median is platted as right-of-way owned by ACHD.
• The width of an island near an intersection is 12-feet maximum for a minimum distance of
150-feet. Beyond the 150-feet, the island may increase to a maximum width of 30-feet.
• At an intersection that is signalized or is to be signalized in the future, the median width
shall be reduced to accommodate the necessary turn lane storage and tapers.
• The Developer or Homeowners Association shall apply for a license agreement if
landscaping is to be placed within these medians.
• The license agreement shall contain the District's requirements of the developer including,
but not limited to, a "hold harmless" clause; requirements for maintenance by the
developer; liability insurance requirements; and restrictions.
• Vertical curbs are required around the perimeter of any raised median. Gutters shall slope
away from the curb to prevent ponding.
c. Applicant's Proposal: The applicant has proposed to extend 2 local stub streets , Beachfield
Avenue and Macumbo Street, into the site.
The applicant has proposed to construct the entrance of Amorita Avenue as a 52-foot wide
street section with two 21-foot wide travel lanes (measured back-of-curb to back-of-curb), a 9-
foot wide landscaped median, vertical curb, gutter, 8-foot wide plater strips and 5-foot wide
detached concrete sidewalk within 79-feet of right-of-way that extends to 1-foot behind the back
of sidewalk.
The applicant has proposed to construct all other internal local streets as 33-foot wide local
street streets with rolled curb, gutter, with 5-foot wide attached concrete sidewalks within 47-
feet of right-of-way or 8-foot wide planter strips and 5-foot wide detached concrete sidewalks
located outside of the right-of-way.
d. Staff Comments/Recommendations: The applicant's proposal meets District Policy and
should be approved, as proposed. The applicant should also be required to dedicate additional
right-of-way for Amorita Avenue so that it extends to 2-feet behind the back of sidewalk. For
detached sidewalk, the applicant may reduce the right-of-way width to 2-feet behind the back
of curb and provide a permanent right-of-way easement that extends from the right-of-way line
to 2-feet behind the back of sidewalk.
The applicant should be required to plat the landscaped medians as right-of-way owned by
ACHD. The applicant or homeowners association should be required to enter into a license
agreement with ACHD for the maintenance of the landscaping.
8. Roadway Offsets
a. Existing Conditions: There are no roadways within the site.
b. Policy:
Local Street Intersection Spacing on Minor Arterials: District policy 7205.4.3 states that
new local streets should not typically intersect arterials. Local streets should typically intersect
collectors. If it is necessary, as determined by ACHD, for a local street to intersect an arterial,
the minimum allowable offset shall be 660-feet as measured from all other existing roadways
as identified in Table 1 a (7205.4.6).
Collector Offset Policy: District policy 7206.4.5, states that the preferred spacing for a new
local street intersecting a collector roadway to align or offset a minimum of 330-feet from any
other street (measured centerline to centerline).
Local Offset Policy: District policy 7207.4.2, requires local roadways to align or provide a
minimum offset of 125-feet from any other street (measured centerline to centerline).
16 Centerville Subdivision
M P P20-0018/ H-2021-0046
c. Applicant's Proposal: The applicant has proposed to construct a collectorl road, Hill Park
Street, to intersect Hillsdale Avenue, a collector road, so that it aligns centerline to centerline
with Hill Park Street on the west side of Hillsdale Avenue.
The applicant has proposed to construct one local road, Amorita Avenue, to intersect Amity
Road, located 970-feet east of Hillsdale Avenue so that it aligns with the Amorita Avenue on the
north side of Amity Road that will be construct in the future as part of Shelburne South
Subdivision.
d. Staff Comments/Recommendations: The applicant's proposal meets District Policy and
should be approved, as proposed.
9. Driveways
9.1 Amity Road
a. Existing Conditions: There are 2 existing partially paved driveways from the site onto Amity
Road:
• A 12-foot wide driveway located 250-feet east of Hillsdale Avenue, and
• An 18-foot wide driveway located 353-feet east of Hillsdale Avenue.
b. Policy:
Access Points Policy: District Policy 7205.4.1 states that all access points associated with
development applications shall be determined in accordance with the policies in this section
and Section 7202. Access points shall be reviewed only for a development application that is
being considered by the lead land use agency. Approved access points may be relocated
and/or restricted in the future if the land use intensifies, changes, or the property redevelops.
Access Policy: District policy 7205.4.6 states that direct access to minor arterials is typically
prohibited. If a property has frontage on more than one street, access shall be taken from the
street having the lesser functional classification. If it is necessary to take access to the higher
classified street due to a lack of frontage, the minimum allowable spacing shall be based on
Table 1 a under District policy 7205.4.6, unless a waiver for the access point has been approved
by the District Commission.
Driveway Location Policy: District policy 7205.4.5 requires driveways located on minor
arterial roadways from a signalized intersection with a single left turn lane shall be located a
minimum of 330-feet from the nearest intersection for a right-in/right-out only driveway and a
minimum of 660-feet from the intersection for a full-movement driveway.
District policy 7205.4.5 requires driveways located on minor arterial roadways from a signalized
intersection with a dual left turn lane shall be located a minimum of 330-feet from the nearest
intersection for a right-in/right-out only driveway and a minimum of 710-feet from the intersection
for a full-movement driveway.
Successive Driveways: District policy 7205.4.6 Table 1 a, requires driveways located on minor
arterial roadways with a speed limit of 50 MPH to align or offset a minimum of 425-feet from
any existing or proposed driveway.
Driveway Width Policy: District policy 7205.4.8 restricts high-volume driveways (100 VTD or
more) to a maximum width of 36-feet and low-volume driveways (less than 100 VTD) to a
maximum width of 30-feet. Curb return type driveways with 30-foot radii will be required for high-
volume driveways with 100 VTD or more. Curb return type driveways with 15-foot radii will be
required for low-volume driveways with less than 100 VTD.
Driveway Paving Policy: Graveled driveways abutting public streets create maintenance
problems due to gravel being tracked onto the roadway. In accordance with District policy,
7205.4.8, the applicant should be required to pave the driveway its full width and at least 30-
17 Centerville Subdivision
MPP20-0018/ H-2021-0046
feet into the site beyond the edge of pavement of the roadway and install pavement tapers in
accordance with Table 2 under District Policy 7205.4.8.
Cross Access Easements/Shared Access Policy: District Policy 7202.4.1 states that cross
access utilizes a single vehicular connection that serves two or more adjoining lots or parcels
so that the driver does not need to re-enter the public street system.
c. Applicant's Proposal: The applicant has proposed to close the 2 existing driveways from the
site onto Amity Road with the sidewalk or a multi-use pathway.
d. Staff Comments/Recommendations: The applicant's proposal meets District Policy and
should be approved, as proposed.
9.2 Hillsdale Avenue
a. Existing Conditions: There are no existing driveways from the site onto Hillsdale Avenue.
b. Policy:
Access Policy: District Policy 7205.4.1 states that all access points associated with
development applications shall be determined in accordance with the policies in this section
and Section 7202. Access points shall be reviewed only for a development application that is
being considered by the lead land use agency. Approved access points may be relocated
and/or restricted in the future if the land use intensifies, changes, or the property redevelops.
District Policy 7206.1 states that the primary function of a collector is to intercept traffic from the
local street system and carry that traffic to the nearest arterial. A secondary function is to service
adjacent property. Access will be limited or controlled. Collectors may also be designated at
bicycle and bus routes.
Driveway Location Policy (Signalized Intersection): District policy 7206.4.3 requires
driveways located on collector roadways near a signalized intersection to be located outside the
area of influence; OR a minimum of 440-feet from the signalized intersection for a full-access
driveway and a minimum of 220-feet from the signalized intersection for a right-in/right-out only
driveway. Dimensions shall be measured from the centerline of the intersection to the centerline
of the driveway
Driveway Location Policy (Stop Controlled Intersection): District policy 7206.4.4 requires
driveways located on collector roadways near a STOP controlled intersection to be located
outside of the area of influence; OR a minimum of 150-feet from the intersection, whichever is
greater. Dimensions shall be measured from the centerline of the intersection to the centerline
of the driveway.
Successive Driveways: District policy 7206.4.5 Table 1, requires driveways located on
collector roadways with a speed limit of 25 MPH and daily traffic volumes greater than 100 VTD
to align or offset a minimum of 245-feet from any existing or proposed driveway.
Driveway Width Policy: District policy 7206.4.6 restricts high-volume driveways (100 VTD or
more) to a maximum width of 36-feet and low-volume driveways (less than 100 VTD) to a
maximum width of 30-feet. Curb return type driveways with 30-foot radii will be required for high-
volume driveways with 100 VTD or more. Curb return type driveways with 15-foot radii will be
required for low-volume driveways with less than 100 VTD.
Driveway Paving Policy: Graveled driveways abutting public streets create maintenance
problems due to gravel being tracked onto the roadway. In accordance with District policy,
7206.4.6, the applicant should be required to pave the driveway its full width and at least 30-
feet into the site beyond the edge of pavement of the roadway and install pavement tapers in
accordance with Table 2 under District Policy 7206.4.6.
18 Centerville Subdivision
M P P20-0018/ H-2021-0046
c. Applicant's Proposal: The applicant has proposed to construct a 38-foot wide curb return type
driveway from the site onto Hillsdale Avenue to align with the existing commercial driveway on
the west side of Hillsdale Avenue located approximately 400-feet south of Amity Road.
d. Staff Comments/Recommendations: The applicant's proposal meets District Policy and
should be approved, as proposed.
9.3 Hill Park Street
a. Existing Conditions: There are no existing collector roads within the site.
b. Policy:
Access Policy: District Policy 7205.4.1 states that all access points associated with
development applications shall be determined in accordance with the policies in this section
and Section 7202. Access points shall be reviewed only for a development application that is
being considered by the lead land use agency. Approved access points may be relocated
and/or restricted in the future if the land use intensifies, changes, or the property redevelops.
District Policy 7206.1 states that the primary function of a collector is to intercept traffic from the
local street system and carry that traffic to the nearest arterial. A secondary function is to service
adjacent property. Access will be limited or controlled. Collectors may also be designated at
bicycle and bus routes.
Driveway Location Policy (Stop Controlled Intersection): District policy 7206.4.4 requires
driveways located on collector roadways near a STOP controlled intersection to be located
outside of the area of influence; OR a minimum of 150-feet from the intersection, whichever is
greater. Dimensions shall be measured from the centerline of the intersection to the centerline
of the driveway.
Successive Driveways: District policy 7206.4.5 Table 1, requires driveways located on
collector roadways with a speed limit of 25 MPH and daily traffic volumes greater than 100 VTD
to align or offset a minimum of 245-feet from any existing or proposed driveway.
Driveway Width Policy: District policy 7206.4.6 restricts high-volume driveways (100 VTD or
more) to a maximum width of 36-feet and low-volume driveways (less than 100 VTD) to a
maximum width of 30-feet. Curb return type driveways with 30-foot radii will be required for high-
volume driveways with 100 VTD or more. Curb return type driveways with 15-foot radii will be
required for low-volume driveways with less than 100 VTD.
Driveway Paving Policy: Graveled driveways abutting public streets create maintenance
problems due to gravel being tracked onto the roadway. In accordance with District policy,
7206.4.6, the applicant should be required to pave the driveway its full width and at least 30-
feet into the site beyond the edge of pavement of the roadway and install pavement tapers in
accordance with Table 2 under District Policy 7206.4.6.
c. Applicant's Proposal: The applicant has proposed to construct four driveways onto Hill Park
Street to access the commercial and multi-family:
• Two 25-foot wide curb return type driveways on the north and south side of Hill Park Street,
located 188-feet east of Hillsdale Avenue and restrict both driveways to right-in/right-out
only with a raised median, and
• Twe One 25-foot wide curb return type driveways on the north and south side of Hill Park
Street located 176-feet east of the western driveways and 138-feet west of Odell Way.
d. Staff Comments/Recommendations: The applicant's proposal for the width of the driveways
and curb return type driveways meets District Policy. The applicant's proposal for the driveway
locations do not meet District Policy which requires driveways with more than 100 VTD on
collector roads with a 25 MPH speed limit to be offset a minimum of 245-feet from any other
19 Centerville Subdivision
M P P20-0018/ H-2021-0046
driveway or that driveways be offset a minimum of 150-feet from a public road intersection.
However, staff recommends a modification of Policy due to the fact that the Meridian Fire
Department has concerns about the drive aisle length without the additional access points for
the east and west drive aisles on Hill Park Street, it is necessary for the site circulation to help
separate the day care drop-off and pick-up traffic from the multi family townhomes uses and the
applicant has restricted the western driveways to right-in/right-out only to eliminate conflicting
left-turn movements between driveways. This is a 28% modification of Policy for driveway
spacing on collector roads and 8% modification of Policy for driveway spacing from a public
intersection on collector roads, respectively, and can be approved at the Development Services
Manager level.
10. Private Drive on Stockport Way
a. Existing Conditions: There are no roadways within the site.
b. Policy:
Driveway Location Policy: District policy 7207.4.1 requires driveways near intersections to be
located a minimum of 75-feet (measured centerline-to-centerline) from the nearest local street
intersection, and 150-feet from the nearest collector or arterial street intersection.
Successive Driveways: District Policy 7207.4.1 states that successive driveways away from an
intersection shall have no minimum spacing requirements for access points along a local street,
but the District does encourage shared access points where appropriate.
Driveway Width Policy: District policy 7207.4.3 states that where vertical curbs are required,
residential driveways shall be restricted to a maximum width of 20-feet and may be constructed
as curb-cut type driveways.
Driveway Paving Policy: Graveled driveways abutting public streets create maintenance
problems due to gravel being tracked onto the roadway. In accordance with District policy,
7207.4.3, the applicant should be required to pave the driveway its full width and at least 30-feet
into the site beyond the edge of pavement of the roadway.
Private Road Policy: District policy 7212.1 states that the lead land use agencies in Ada County
establish the requirements for private streets. The District retains authority and will review the
proposed intersection of a private and public street for compliance with District intersection
policies and standards. The private road should have the following requirements:
• Designed to discourage through traffic between two public streets,
• Graded to drain away from the public street intersection, and
• If a private road is gated, the gate or keypad (if applicable) shall be located a minimum of
50-feet from the near edge of the intersection and a turnaround shall be provided.
c. Applicant's Proposal: The applicant has proposed to construct a 28-foot wide private drive onto
Odell Way-Stockport Way that transitions from Rincon Drive to a private drive to access the
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20 Centerville Subdivision
M P P20-0018/ H-2021-0046
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d. Staff Comments/Recommendations: The applicant's proposal to construct the private drive so
that it aligns with Rincon Drive meets District Policy, however, the public road should not transition
to a private drive as proposed. The right-of-way should terminate on the west edge of the
intersection of Stockport Way and Rincon Drive, shown below.
If the City of Meridian approves the private road, the applicant shall be required to pave the private
roadway its full width and at least 30-feet into the site beyond the edge of pavement of all public
streets and install pavement tapers with 15-foot curb radii abutting the existing roadway edge. If
private roads are not approved by the City of Meridian, the applicant will be required to revise and
resubmit the preliminary plat to provide public standard local streets in these locations.
Street name and stop signs are required for the private road. The signs may be ordered through
the District. Verification of the correct, approved name of the road is required.
ACHD does not make any assurances that the private road, which is a part of this application, will
be accepted as a public road if such a request is made in the future. Substantial redesign and
reconstruction costs may be necessary in order to qualify this road for public ownership and
maintenance.
The following requirements must be met if the applicant wishes to dedicate the roadway to ACHD:
• Dedicate a minimum of 50-feet of right-of-way for the road.
• Construct the roadway to the minimum ACHD requirements.
The appliGant's proposal to offset multi family driveway on Odell Way 35 f8et Rerth Of Hillsbereluo
driveways near IeGal read iRterseGtiORS te aligR er effset a MiRiMUM of 75 feet frem a
Staff has GenGerns about the left turn movements out of this driveway and
with or offset the driveway a miRim,im of 75 feet from Hillsbero, gh Stroot
21 Centerville Subdivision
MPP20-0018/ H-2021-0046
I s
38 27 10 21
39 26 E,HI NO
3 O o 1140
'� _ .✓' a
41 25 ® 12 < 1 20 19 18 17 16 15 14 13 12 11a 9
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4 23 13 a� 10
x ZONINGING LIMITS
43 R 22 14 ZONING LIMITS
21 (R_8) BL CK S
45 20 Right-of- 5 21 22 23 24 25 26 27
N
46 3 Way
19
48 PRIVATE LINE(W.Rill ON LANE)48 48
9 50 51 52 53 54 55 56 57 58 59
=_ �2 61 62 63 64 65 66 67
BL CK6 —
BLOCK 6
11. Traffic Calming
a. Speed Control and Traffic Calming Policy: District policy 7207.3.7 states that the design of
local street systems should discourage excessive speeds by using passive design elements. If
the design or layout of a development is anticipated to necessitate future traffic calming
implementation by the District, or the streets extend greater than 750-feet in length, then the
District will require changes to the layout and/or the addition of passive design elements such as
horizontal curves, bulb-outs, chokers, etc. The District will also consider texture changes to the
roadway surface(i.e. stamped concrete)as a passive design element. These alternative methods
may require maintenance and/or license agreement.
b. Staff Comments/Recommendations: Beachfield Avenue and Odell Way are local roads that
are proposed to have straight segments longer than 750-feet within the development. The
applicant should be required to redesign the roadways or provide passive traffic calming
measures consistent with District Policy. Stop signs, speed humps and valley gutters will not be
accepted as traffic calming.
12. Tree Planters
Tree Planter Policy: Tree Planter Policy: The District's Tree Planter Policy prohibits all trees in
planters less than 8-feet in width without the installation of root barriers. Class II trees may be
allowed in planters with a minimum width of 8-feet, and Class I and Class III trees may be allowed
in planters with a minimum width of 10-feet.
13. Landscaping
Landscaping Policy: A license agreement is required for all landscaping proposed within ACHD
right-of-way or easement areas. Trees shall be located no closer than 10-feet from all public storm
drain facilities. Landscaping should be designed to eliminate site obstructions in the vision triangle
at intersections. District Policy 5104.3.1 requires a 40-foot vision triangle and a 3-foot height
restriction on all landscaping located at an uncontrolled intersection and a 50-foot offset from stop
signs. Landscape plans are required with the submittal of civil plans and must meet all District
requirements prior to signature of the final plat and/or approval of the civil plans.
14. Other Access
Amity Road is classified as minor arterial roadway, and Hillsdale Avenue and Hill Park Street are
classified as collector roadways. Other than the access specifically approved with this application,
direct lot access is prohibited to these roadways and should be noted on the final plat.
D. Site Specific Conditions of Approval
1. Prior to ACHD's signature on the first final plat, submit a revised preliminary plat showing that
Beachfield Avenue and Odell Way are redesigned to reduce the length of the roadway or include
22 Centerville Subdivision
M P P20-0018/ H-2021-0046
the use of passive design elements for traffic calming. Stop signs, speed humps/bumps and valley
gutter will not be accepted as traffic calming.
2. Signalize the intersection of Amity Road and Hillsdale Avenue as a 3 X 3 interim signal prior to
ACHD's final approval and signature on the final plat that contains the 61st single family lot or the
final plat the generates 61 PM peak hour trips. ACHD will provide the signal hardware as a signal
has been planned for this intersection.
Obtain plan approval and enter into a signal agreement with ACHD. The signal agreement should
include requirements that the intersection be designed as a 3 X 3 intersection in its current
configuration; that the applicant is responsible for all costs associated with the design and
installation of the interim signal and that interim improvements are not eligible for reimbursement
by ACHD.
In order to ensure the Amity Road/Hillsdale Avenue intersection will be improved when warranted,
the following items must be in place prior to plans acceptance of the final plat that contains the
61 It single family lot, or generates 61 PM peak hour trips:
• Signal Agreement;
• Full design and approved plans for the intersection.
3. If the applicant chooses to install an RRFB crossings on Hillsdale Avenue at Rockhampton Street
or Hill Park Street, the applicant will need to obtain plan approval, purchase the signal equipment,
and enter into a signal agreement with ACHD. The applicant will need to order and purchase the
signal hardware as ACHD does not have these materials available for this project. The applicant is
responsible for the design, hardware and installation of pedestrian crossing.
The signal agreement should include requirements that the applicant is responsible for all costs
associated with the hardware, design, and installation of the flashing beacon, and that this
improvement is not eligible for reimbursement by ACHD.
In order to ensure the RRFB with intersection lighting on Hillsdale Avenue is installed, the following
items must be in place prior to plans acceptance.
• Signal Agreement
• Full design and approved plans for the crossing
4. Dedicate additional right-of-way for the future roundabout at the intersection of Amity Road and
Hillsdale Avenue abutting the site consistent with the attached single-lane roundabout template and
Finding 3.
5. Dedicate additional right-of-way to total 39-feet from the centerline of Amity Road abutting the site.
6. Construct a minimum 5-foot wide detached concrete sidewalk located a minimum of 32-feet from
the centerline of Amity Road abutting the site. The applicant may also construct a 10-foot wide
multi-use pathway in lieu of a 5-foot wide detached concrete sidewalk located a minimum 32-feet
from the centerline of Amity Road abutting the site.
7. Widen the pavement on Amity Road to 17-feet from centerline of the roadway with a 3-foot gravel
shoulder where deficient abutting the site.
8. Construct a dedicated eastbound right-turn lane and a dedicated westbound left-turn lane on Amity
Road at Amorita Avenue when it is constructed to intersect Amity Road. The applicant should
coordinate with Shelburne South Subdivision directly north of the site for the construction of the
westbound left-turn lane on Amity Road.
23 Centerville Subdivision
M P P20-0018/ H-2021-0046
9. Construct a 5-foot wide detached concrete sidewalk with an 8-foot wide planter strip on Hillsdale
Avenue abutting the site, as proposed. The sidewalk shall connect to the existing sidewalk at the
northeast corner of Rockhampton Street and Hillsdale Avenue.
10. Construct one 38-foot wide curb return type driveway from the site onto Hillsdale Avenue that aligns
centerline to centerline with the driveway on the west side of Hillsdale Avenue that is located 400-
feet south of Amity Road, as proposed.
11. Replace any broken segments of curb and gutter abutting the site on Hillsdale Avenue consistent
with the District's Minor Improvements Policy.
12. Construct a collector road, Hill Park Street, to intersect Hillsdale Avenue so that it aligns centerline
to centerline with Hill Park Street on the west side of Hillsdale Avenue, as proposed.
13. Construct the entry portion of Hill Park Street with a 10-foot wide landscaped median that extends
from the entrance of Hill Park Street to 75-feet beyond the eastern edge of the western driveways
with 20-foot wide travel lanes on either side of the median with vertical curb, gutter and 5-foot wide
detached or 7-foot wide attached concrete sidewalk within right-of-way that extends to 2-feet behind
the back of sidewalk. If street trees are desired, an 8-foot wide planter strip is required.
14. Construct the remaining portion of Hill Park Street as a 36-foot wide collector street section with
vertical curb, gutter, 8-foot wide planter strips with 47-feet of right-of-way and 5-foot wide detached
concrete sidewalk, as proposed.
15. Construct one local road,Amorita Avenue,to intersect Amity Road located 970-feet east of Hillsdale
Avenue so that it aligns with the Amorita Avenue on the north side of Amity Road that will be
construct in the future, as proposed.
16. Construct the entry portion of Amorita Avenue as a 52-foot wide street section with two 21-foot wide
travel lanes (measured back-of-curb to back-of-curb), a 9-foot wide landscaped median, vertical
curb, gutter, 8-foot wide plater strips and 5-foot wide detached concrete sidewalk within 80-feet of
right-of-way, as proposed. The applicant may also reduce the right-of-way width to 2-feet behind
the back of curb and provide a right-of-way easement that extends from the right-of-way line to 2-
feet behind the back of sidewalk.
17. The applicant shall plat all landscape medians as right-of-way owned by ACHD. The applicant or
homeowners association shall enter into a license agreement with ACHD for the maintenance of
the landscaped medians.
18. Construct all internal local roads as 33-foot wide local street sections with curb, gutter, and 5-foot
wide attached concrete sidewalk within 47-feet of right-of-way, or an 8-foot wide planter strip and
5-foot wide detached concrete sidewalk located outside of the right-of-way, as proposed.
19. Close the 2 existing driveways from the site onto Amity Road located 252-feet and 350-feet east of
Hillsdale Avenue with the sidewalk or a multi-use pathway with the improvements to Amity Road,
as proposed.
GARGtFWGt eRG dFiveway OR Odell Way to aGGeSS the PAulti family that aligRF, with Ar is, Aff-set a
minims rn of 75._feet from Hillsbe Fey gh Strout
21. Construct one 28-foot wide private drive onto Stockport Way so that it aligns centerline to centerline
with Rincon Drive. Terminate the right-of-way on the west edge of the intersection of Stockport Way
and Rincon Drive, as shown in Finding 10.
22. Street name and stop signs are required for the private road. The signs may be ordered through
the District. Verification of the correct, approved name of the road is required.
23. Construct two 25-foot wide curb return type driveways on the north and south side of Hill park Street
located 188-feet east of Hillsdale Avenue, as proposed. Restrict the driveways to right-in/right-out
24 Centerville Subdivision
M P P20-0018/ H-2021-0046
only with a raised median that extends from the entrance of Hill Park Street to 75-feet to the east
beyond the eastern edge of the driveways.
24. Construct two one 25-foot wide curb return type driveways on the north side and c^��de of Hill
Park Street located 138-feet west of Odell Road, as proposed.
25. Stripe a crosswalk on Hill Park Street mid-block, as proposed. The crosswalk shall align with any
north/south pathways that will cross Hill Park Street. Install pedestrian crossing signs in advance
of the crossing and at the crossing, and install street lighting at the crossing.
26. For detached sidewalk or multi-use pathways located outside of the right-of-way, provide a
permanent right-of-way easement that extends from the right-of-way line to 2-feet behind the multi-
use pathway or sidewalk. Sidewalks and multi-use pathways must be located entirely within right-
of-way or entirely within a permanent right-of-way easement.
27. Direct lot access is prohibited to Amity Road, Hillsdale Avenue, and Hill Park Street and should be
noted on the final plat.
28. Submit civil plans to ACHD Development Services for review and approval. The impact fee
assessment will not be released until the civil plans are approved by ACHD.
29. Payment of impact fees is due prior to issuance of a building permit.
30. Comply with all Standard Conditions of Approval.
E. Standard Conditions of Approval
1. All proposed irrigation facilities shall be located outside of the ACHD right-of-way (including all
easements). Any existing irrigation facilities shall be relocated outside of the ACHD right-of-way
(including all easements).
2. Private Utilities including sewer or water systems are prohibited from being located within the ACHD
right-of-way.
3. In accordance with District policy, 7203.3, the applicant may be required to update any existing non-
compliant pedestrian improvements abutting the site to meet current Americans with Disabilities
Act (ADA) requirements. The applicant's engineer should provide documentation of ADA
compliance to District Development Review staff for review.
4. Replace any existing damaged curb, gutter and sidewalk and any that may be damaged during the
construction of the proposed development. Contact Construction Services at 387-6280 (with file
number)for details.
5. A license agreement and compliance with the District's Tree Planter policy is required for all
landscaping proposed within ACHD right-of-way or easement areas.
6. All utility relocation costs associated with improving street frontages abutting the site shall be borne
by the developer.
7. It is the responsibility of the applicant to verify all existing utilities within the right-of-way. The
applicant at no cost to ACHD shall repair existing utilities damaged by the applicant. The applicant
shall be required to call DIGLINE (1-811-342-1585) at least two full business days prior to breaking
ground within ACHD right-of-way. The applicant shall contact ACHD Traffic Operations 387-6190
in the event any ACHD conduits (spare or filled)are compromised during any phase of construction.
8. Utility street cuts in pavement less than five years old are not allowed unless approved in writing by
the District. Contact the District's Utility Coordinator at 387-6258 (with file numbers) for details.
9. All design and construction shall be in accordance with the ACHD Policy Manual, ISPWC Standards
and approved supplements, Construction Services procedures and all applicable ACHD Standards
25 Centerville Subdivision
M P P20-0018/ H-2021-0046
unless specifically waived herein. An engineer registered in the State of Idaho shall prepare and
certify all improvement plans.
10. Construction, use and property development shall be in conformance with all applicable
requirements of ACHD prior to District approval for occupancy.
11. No change in the terms and conditions of this approval shall be valid unless they are in writing and
signed by the applicant or the applicant's authorized representative and an authorized
representative of ACHD. The burden shall be upon the applicant to obtain written confirmation of
any change from ACHD.
12. If the site plan or use should change in the future, ACHD Planning Review will review the site plan
and may require additional improvements to the transportation system at that time. Any change in
the planned use of the property which is the subject of this application, shall require the applicant
to comply with ACHD Policy and Standard Conditions of Approval in place at that time unless a
waiver/variance of the requirements or other legal relief is granted by the ACHD Commission.
F. Conclusions of Law
1. The proposed site plan is approved, if all of the Site Specific and Standard Conditions of Approval
are satisfied.
2. ACHD requirements are intended to assure that the proposed use/development will not place an
undue burden on the existing vehicular transportation system within the vicinity impacted by the
proposed development.
G. Attachments
1. Vicinity Map
2. Site Plan
3. TIS Executive Summary
4. Roundabout Template
5. Utility Coordinating Council
6. Development Process Checklist
7. Request for Reconsideration Guidelines OR Appeal Guidelines
26 Centerville Subdivision
M P P20-0018/ H-2021-0046
VICINITY MAP
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27 Centerville Subdivision
MPP20-0018/ H-2021-0046
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28 Centerville Subdivision
MPP20-0018/ H-2021-0046
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29 Centerville Subdivision
MPP20-0018/ H-2021-0046
Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
EXECUTIVE SUMMARY
CR EnVnmmg, Inc. leas been retained to prepare a traffic iaqxLct study ('ITS) far the proposed Gmten-Me
Subdivision located in the southeast quadrant of the Hillsdale Avenue and Amity Road=ersectkm in Meridian,
Idaho, as shown in Figure 1.1. The scope of this TIS was deternoined through coordination with the Ada County
Highway District (A=) with inputs from the Ce mruaity Planning Association of Soxtbmest Idaho
(COMPASS)-
The TIS e�,atuates the potential traffic impacts resulting from backpDmmd traffic growth,in processdetirelopments
in the study area, and the proposed de,�.elapmmt, and ide rifles impronren3ents to mitigate the impacts if needed,
Trafficimpacts were evaluated bawd on the proposed land uses and accesses as shown m the prelimmat�, site plan
miler weekday AM and PM peals boors traffic conditions- Table 1 snmmnanzes the impro-�remieuts needed to
mitigate the traffic impacts far the following anal)-as years traffic conditions:
■ 2020 Existing traffic
■ 2025 Build-out year backgtzrcund traffic
■ 2025 Build-out year total traffic
Table 1—Proposed Improvements Summar}-
Intersardon 2025 Build-Out Year
or 2020
RoadwaT Seff3ment Esistine Back-ground Iotal
Eagle i Dual-lane roundabout
and 0right-tarn lane final-lane roundabout with 1
S13 right-tarn lane with SB right-turn lane
Amity FLd
Hillsdale Ave Interim sign al Interim signal
and None or or
Amity lad single-lane roundabout single-lane rouudabout
Clop-erdale Rd Rmenstra-rt as a multilane roundabout Reeonstruet as a multilane roundabout
3 and None oQ or
Amity U add SB and RB night-tarn lanes add SB and W13 right-turn lanes
A and posed
Ug iaedMte� n Tnsign2bzed intersection
sty Rd site acess n-e3secta with turn lanes
Widen to 9 lanes Wider to 5 laaea
Amity Rd Nme a or
FagleRdto�,e site widen N 3laues(GIP)plus setup widen to 31ants(C'IP)plus pug into
Priority Corridor Fund Priority Corridor Fund
IV'iden to:lanes Widrato 5 lanes
Amity Rd Nam ar or
SdE b Cloverdale Fd widra to 3 hues(C IN pins widen to 3 Ianes{GIP}pins P"into
11 alternative mftation measares I Moft Corridor Fund
1 Roundabout minimally exceeds ACM tbaesholds;no additional improvementr are recommended
January 2021 1
30 Centerville Subdivision
MPP20-0018/ H-2021-0046
Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
1.0 Proposes! Development
1.1 Centerville SubdiTision is a proposed mixed-use de-velopment estunaned to contain 124 single-fain*
dwelling units}35 to,.-ivhomes, 168 multif ruily'dwell�units,and a 4,D78-square foot day-care center_The
anticipated bwld-cut yew for the proposed de-Mopment is 2D25 but may change depending on the market
conditions.
1.2 Based on the procedures oudmed in the Trip Gmemffon Hare ook; 3''& fton and the Trip Gmeradon
Mannarl, 1OFh F non, both published by the Institute of Transportation Enginor-s (TTE), the proposed
d elcpaent is estimated to generate approximately 2,599 tripe pier weekday with 213 trips during the A
peak hour and 266 trips during the PM peak hour_
■ Based on the proposed land uses,the development is not expected to retrain trips within the site
■ Based on the proposed laud uses,the de-velopment is not expected tea attract pass-by tripe
■ All trips generated by the development were assumedto be made by personal or comaurial�,Thicles
13 The estimated site traffic distribution patterns are:
0 1011e uvith onginsdestinations west of the site
2 10%with onginsdestinations east of the site
h 70%u-ith ongin&destinations north of the site
0 HP/6 uwith onginsdestinations south of the site
1.4- Centerville Subdivmiou is proposing one approach on Amity Road; one approach on Hillsdale A-venue,
connectivity to Macumbo Street within Rockhampton Subdhision to the east, and oonnecti--ity to
BleachfreldAxnmue within Houma Lane Su.bdnisiou to the south for site access:
I Proposed approach on Amity Road(Amofta Avenue)
• Proposed as a full-movement access located approximately 1,010 feet east of Hillsdale A%9mue and
aligns mitt the proposed Shelburne South Subdivision approach to the uor#h
• Meets AC'HD access spacing on a minor arterial
• Expected to require an eastbound right-turn lane and a westbound left-am lane based our AC'HD
turn-lane guidelines
v The eastbound ught-am lane is warranted when the de�,elep went generates approximately 250
peak hour trips,which is equivalent to full corLstrAion of the daycare facility,full build of the
168 multifamily dwelling unite and 124 single-family dwelling units
v The westbound left-turn lane is „ma ted when the de velopment generates approximately 85
peak hour trips,which is equh-allent to approximately 80 of the 124 single-fnuily dwelling units
or full build of the 168 inultifiniily dxelliug units
• Northbound mowments are expected to meet ACM nunirniunt operational thresholds with the
umn-anted nun hues
■ Proposed approach on Hillsdale A-�x-nue(Hi11 Park Street)
• Proposed as a full-ram ement access located appro mmtely 310 feet south of the Hillsdale
commercial access and aligns with Hill Park Street to the west
• Meets AC'HD access spacing on a 25-mile per hour collector street
• Is not expected to require turn lases ito the site based on ACTT ttun-lane guidelines
January 2021
31 Centerville Subdivision
MPP20-0018/ H-2021-0046
�y Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
.0 2020 Existing Traffic Conditions
2.1 Due to the redw&d.travel demand from the C:D�'ID-19 pandemic at the tune of this TTS,no new traffic
counts were collected for this TLS. Old traffic counts collected between 2018 and M 19 for pre-,ious studies
in the area were used in this TIS_The 201SQ019 traffic counts were scaled up to 2D20 isbng traffic using
the following annual growth rates based am COMPASS model forecasts and coordination with ACHD:
■ Eagle Road north of Amity Road—12.0°
■ Eagle Road south of Amity Road and Amity Road—5.0%
■ Crhmwdale Road—3.0%
■ Hillsdale Avenue—2.0%
2.2 With the estimated 2020 existing traffic,one study area intersection exceeds AGED fvin nwtrn operational
thresholds analyzed -with the existing intersection control, signal timing, and lane oonfigumtions. Th e
rse intechoi4 operational dues,and it mill„mi mitigation imp'rm-ement are.
■ Eagle lid and Amity Road roundabout
+ The onrerall intersection and all lane groups are anticgmded to meet minimum operational thresholds
with the exception of one lane group:
v The soul bound approach is operating at Lenml of Service(LDS)F with a vohune to capacity
ratio (vic)of 1.13 during the PM peak hour, which exceeds both ACHD LDS E and.0.85 vfc
ratio thresholds
+ Construcung an additional southbound right-ttuu lane is recommended as an mtff= mitigation
improvement
v With the additional southbound right-turn lane,the intersection is anticipated to operate at LOS
C oi•better with a xdc ratio of 0.82 cd less for all lane groups during the peal,hours
The Eagle Road sad Amity Road iniersection is programmed m the ACHD 2021-2023 hrtegratedFrw-
Year Work Plan(En WP)to be widened,-reconstnuted to a diugl-lace roundabout with two entering and
exiting lames on all approaches in 202 1.
23 The Htllsdale Air mue and Amity Road intersection meets MLTrCD signal W-arrant 1 .and W-arrant 2 with
2D20 existing traffic_ Howe�,er, the intersection meets ACHD minirmn, operational thresholds as as
unsignalized intersection_As a result,no mitigation imtprovements are recommended to mitigate 2020 traffic
operations.
2_4- With 2020 existing traffic,all study area rozftmv seZments meet ACHD level ofsen ice planning thresholds
mitt the existing lane configuration Besides the intersection imprm-ements, no roadway capacity
impr nremenis are recommended to mitigate-21020 existing traffic operations.
10 2025 Build-Out Year Background Traffic Conditions (No Site Traffic)
3.1 2D25 background traffic was estimated by extrapolating the existing txaffic counts with the fo-lkywing annaaal
growth rates based on COMPASS model forecasts and coordination with ACHD:
■ Eagle Road north of Amity Road—12.0%
■ Amity Road and Eagle Road south of Amity Road—5.0%
■ C'lmwdale Road—3.()°/,0
■ Hillsdale Avenue—2.0%
January 2021 =
32 Centerville Subdivision
MPP20-0018/ H-2021-0046
Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
3.2 V;#A 2025 background traffic, three shtdy area intersections are anticipated to e)! a ACHD"numat
operational thresholds analyzed width the existing mtersect;on control and lane con igarations(no-build)_Tb,-
intersections,operational deficiencies,and proposed mitigation u 4nm-ements are:
III Eagle Road and Amity Road naundabout
The intersection is anticipated to operate at LOS E with the critical northbound lane group operating
at LOS F with a vfc ratio of 1_U3 during the AM peak hour,and LOS F .vith the critical southbouud
lane group operates at LDS F with a v Jc ratio of 2.26 during the PM peals hour'
+ The muuiumm m4yov meets rerommeuded to mitigate 2025 background traffic operations are:
v Widen and reconstruct to a dik91-lane roundabout as grog mmaed m the IFY44P ,vith two
entering and exiting lanes on all approaches plus a sott#hboundright-tam lane
■ The southboimd right-tutu lane is not programmed in the IFYWP but is needed to mitigate
2025 badcgroimd traffic operations to meet AC.'HD minitrnun operational thresholds
■ Without the additional soutWxnmd right-turn lane, the soul bound lane groups are
anticipated to operate at LOS F during the PM peak hour with vic ratios exceeding 1.00
■ With the additional suthbound right-turn lane,the intersection operates at LOS C:or better
with all lam groups operating at LOS C:or better;vith vic ratios of 0.82 or less during the
peak hours
The intersection fails under existing traffic conditions; therefore. it will oontinue to fail with
additional background traffic growth
i Hillsdale Avenue and Amity Road intersection(M-o options)
• The critical northbound left-tiun lace croup is anticipated to operate at LDS F with a vic ratio of
0.45 during the AM peak hour and at LOS F uith a vic ratio of 0.90 dutniug the PM peak hour,
exceeding AC.'HD LDS E threshold
+ Two mitigation options arereoominended:
v Option 1—Install traffic signal with existing lanes
■ As under existing ftaffic conditions, the intersection meets N=CD signal Wafrant 1 and
%Varrant 2 tusder 2025 background traffic conditions
■ A traffic signal would be an interim imprmTnierit as the intersection is planned far a single-
laue round .bout
■ With a traffic signal and existing lace configuration,the onTerall intersection is anticipated
to operate at LOS B or better with an intersection v c:ratio of 0.62 or less doting the peak
hones. All lane groups are anticipated to operate at LOS C:or better with We ratios of 0.81
or less dwing the peak hours.
v Option 2—Recrmcmrt as a single-lase roundabouA
■ The Hills[entity Farms 6nnelopm eut is planning to reconstruct the Hillsdale Avenne and
Amity Road intersection as a single-lane roundabout to mitigate their impacts as conditioned
by ACM.
■ With a single-lane roundabout,the intersection is anticipated to operate at LDS B with all
lane groups operating at LOS B or better with 1c ratios of 0.72 or less&=g the peak hours
The critical northbound left-turn lane group is anticipated to operate at LOS F and triggers mitigation
improvements by 2021 with an additional background traffic increase of approximately 60-ducles
per hour(vph)dieing the PM peal,ham beyond 2020 existing traffic volumes
Traffic cou=s should be recollected in the fixture to verify traffic Brawl andiWcwement needs
Jane ary 2021 4-
33 Centerville Subdivision
MPP20-0018/ H-2021-0046
a�imrrit Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
111 Cloverdale Road and.omits Road intersection(2 options)
• The intersection is anticipated to operate at LOS E oath an mwall intersectian vdc ratio of 0.91
diuW the peak hours, exceeding ACHD 0.90 threshold. Additionally- two lane gravpa are
anticipated to operate at LOS F with a v:c ratio exceeding 1.00:
o The westbound throughlright-hum lane group is anticipated to operate at LOS F with a vie ratio
of 1.04 during the AM peak hour
o The southbotnd thraough/righttturu lane group is anticipated to operate at LOS F with a v/c ratio
of 1.08 during the FM peak hour
• Two mitigation options are reconunmded:
c Option 1 —Reconcmrt as a multilane roundabout — two entering and exiting lanes on the
Cl(nTrdale Raad approaches and me shared throughfleft4um lane and one right-turn lane on
the Amity Road approaches
■ The intersection is programmed in the IFY%T to be widened-reconstructed m a multilane
roundabout with mo entering and exiting lanes on.the Cloverdale Road approaches and one
entering and exiting lane on the Audits Road approaches_The additional right-turn lanes on
the eastbound and westbound approaches arenot programmed in the IF'lt YP but are needed
to mitigate 2025 background traffic operations_
■ As a multilane roundabout with.the lane configurations as programmed in the IFY XT. the
westbound approach is anticipated to operate at LOS F with a vic ratio of 0.92 during the
Alai peak hour and the eastbmmd approach is anticpated to operate at LOS E with a v c
ratio of 0.94 during the PM peak hour,exceeding ACHD 0.85 threshold
■ With the additional right-turn lanes on the eastbound and westbound .approaches, the
injtersemon is anticipated to operate at LOS B with all lane groups anticipated to operate at
LOS D or better ivAL-,,`c ratios of 0.76 or less during the peak hours
• Option 2—Constructright-tumlanesonthesouxhbouud and westbound approaches with the existrng
Signal
o With the additional right-turn lanes,the o�Trall intersection is anticipated to operate at LOS D
with a v/c ratio less than 0.90 during the peak hours.All lane groups are anticipated to operate
at LOS E or better with v/c ratios of 0.96 or less during the peak hours
• The intersection is anticipated to exceed fl,+ninium operational thresholds and triggers mitigafiam
improvements by 2024 with an additional background traffic increase of approximately 300 vph
during the PM peakhour beyond2020 existing traffic volumes
v Traffic cou=should be recollected in the faturetn-Lnmjy tra�ffic gromh and imprm-ementneeds
33 With 2025 background traffic,both study area roadu-ay segments on Amity Road between Eagle Road and
Cloverdale Road are anticipated to exceed AC=level of senace planning thresholds with the existing lane
config mhm during the peak hours_The steady area roadway segments,capacity deficiencies,and proposed
mitigation improvements are:
r :kmih-Road segment between Eagle Road and Hillsdale Avenue(two options)
• The anticipated peak hour directional volume on this roadway segment is 770 vph m the AM peak
hour and 821 ,,ph in the Phi peak hour,exceeding ACM 720 vph threshold
• Option 1—Widen to fire lanes
o Based oa the proj ected vchmes,this Amity Road segment needs five lanes to meet ACHD LOS
plan threshold
January 2021 5
34 Centerville Subdivision
MPP20-0018/ H-2021-0046
Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
• Option 2—Widen to three lanes as programmed m ACHD OlP plus Setup a Priority Cctridor Fund
o This Amity Road segment is constrained to a numimurn of three lanes:
■ According to ACHD Master Street Map (MS 4 Amity Road is identified for three lanes
ROW presen-arum bets een Eagle Road and Ckn-erdale Road
■ According to ACHD 2020 CEP, Amity Road is prograrnined to be widened to duee lanes
between Eagle Road and Cloverdale Road between 2036 and 2040
• This Amity Road segment is anticipated to continue to emceed ACED LDS p171� threshold
dining the PM shoulder hour as a three-lane minor arterial. Therefore,ACHD should investigate
into dc-velcp M a Priority Corridor Fund for future imprrnements between Amity Road and
Hillsdale AiT nue.
+ This Amity Road segment is anticipated to exceed ACHD LOS planning threshold by 2024 with an
additional background traffic increase of approximately 105 -,ph in the peak direction during the
PM peak hoer beyond 2020 existing traffic volumes
v Traffic ommts should be recollected in the fixture to verify traffic pm-th and impro%,nnmt needs
■ Amih-Road segment between Hillsdale Avenue and Cloverdale Road(two options)
• The anticipated peak hour directional-volume on this roadway segment is 784-vph m the AM peal-
hair and 817 Kph in the Phi peak hour,emeedmg ACM 720 vph threshold
Option 1—Widen to fire lanes
o Based on the projected vohmes,this Amity Road segment needs five lanes to meet ACHD LOS
planning threshold_
• option 2—Widen to three lanes as programmed in ACHD CIP plus alternative mitigatianmeas mes
v This Amity Road segment is constramed to a maxiawm of three lanes:
■ According to ACID MSK Amity Road is identified:far three lames ROW preservation
between Eagle Road and Cloverdale Road
■ According to ACHD 2020 CIP, Amity Road is programmed to be widened to three lanes
between Eagle Road and Cloverdale Road between 2036 and 2040
• This Amity Road segment is anticipated to meet ACED LOS plaunmg threshold during the shoulder
hours as a three-lane minor arterial_ As a result, ACHD should consider the follouring mitigation
alternatives:
o M imuDa sight distance obstructions at drkeuways and intersections along thisroadscay segment
o Install 34nch retroreflech%T tapeJsheeting on the signal backplates at the C10-.,erdale Road and
Amity;Road intersection to impro,,e signal head�,,Edmlidty,which could potentially reduce the
crash frequency and-cr severity(C11 Clearinghouse ID: 1410)
o Construct missing sidewallm
o Construct bicycle facilities
o Provide mid-block crossing om Amity Road
■ Pedestrian crossing treatment should be conducted
This Amity Road segment is anticipated to exceed ACHD LOS planning threshold by 2024 with an
additional background traffic imrrease of approximately 97 vph m the peak direction during the PM
peal-hour beyond 2020 existing traffic vnbvnes
v Traffic counts should be recollected m the fixture to-%T nfy traffic growth and imprm-emient needs
January 2021 6
35 Centerville Subdivision
MPP20-0018/ H-2021-0046
CR E`.iOV "Va LW Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
4.0 2025 Build-Out Year Total Traffic ondldons-(Background Plus Site Traffic)
4.1 With 2025 total traffic, three study area intersections are anticipated to e!�cceed a;++;TT,um operational
thresholds analyzed with the existing intersection control and lane configurations_ The intersections,
operational defiaencies,and proposed mitigation imprm-ements are:
11 Eagle Rand and sty Road intersection
+ The intersection is anticipated to operate at LDS F during the peak hours. Additionally, the
westbound and northbound approaches are anticipated tea operate at LOS F with vdc ratios exceeding
1.00 during the AM peak peak hour_The eastbound and southb aund approaches are anticipated to operate
at LOS F withvic ratios exceeding 1.00 during the PM peal:hour
• As with 2025 background traffic conditions,the rec.r,r„tS,m ationmitigation improwmients are:
o Widen and reconstruct to a dual-lane roundabout as progranmed. in the IFY-WP with two
entering and exiting lanes on all approaches plus a soirthhound right-turn lane
o With these waprm,ements, the intersection is anticipated to meet minirlmm operational
thresholds except for the sorthbound through lane group operating with a v/c ratio of0.88 during
the Phi peak hour,uhich slightly exceeds ACHD 0_85 threshold
■ No additional iniprmemeats are proposed to reduce the cri cal.lane group v?c below 0.85
S- AC=HD may pexn it thbe ammmxn v c ratio to be greater than 0_85 on a case-by-case
basis to avoid mwbuilding
Y Adding additional turn lanes is not expected to reduce the southboimd through lane
gfmT We ratio to below 0.85
+ The intersection fails under existing traffic conditions without additional site tr,,fic
■ Hillsdale Avenue and Amity Road intersection(two op dons)
+ The critical northbound left-=u lane group is anticipated to operate at LOS F with a v.c ratio
weeding 1.00 during the peak hours,exceeding tmn9amim operational thresholds
• As with 2025 background traffic conditions,two mitigation options are recommended:
o Option 1—Install traffic signal with existing lanes
■ As with existing and 2025 background traffic conditions,the intersection meets MUTED
signal Wan-ant 1 and Tarrant 2 under 2025 total traffic conditions
■ A traffic signal would be an interim impronTmeat as the initersectim is planned for a single-
lane roundabout
■ With a traffic signal and existing lane configutatitm,the<nerall intersection is anticipated
to operate at LOS B la ith a v/c ratio of 0.73 or less during the peak hours_All lane groups
are anticipated to operate at LOS C:or better with v�c ratios of 0.81 or less during the peak
hours
Option 2—Reconstruct as a single-lane roundabout
■ The Hills Century Farms development is planning to reconstruct the Hillsdale Avenue and
Amity Rand intersection as a single-lane roundabout to mitigate their impacts as conditioned
by AC:HD_
■ With a single-lane roundabout,the inbusecti€n is anticipated to operate at LOS E or biter
with all law groups opEating at LDS C:or better with;./c ratios of 0.83 cr less dloring the
pear hours
January 2021
36 Centerville Subdivision
MPP20-0018/ H-2021-0046
'a?im ► G Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
+ The critical northbound left-hum lane group~is anficipated.to operate at LOS F and trigger mitigation
insprovements by 2021 with an additional traffic increase of approximately 60 Kph during the PM
peal;hoar beyond 2020 existing traffic volumes
o Traffic counts should be recollected in the frphue to 69E i background traffic grouch, site
de,6mlapment,and improvement needs
Cloverdale Road and.Amity Road intersection
• The overall udusection is anticipated to open ate at LOS E with a vie ratio of 0.94 or greater during
the peak hours,exceeding ACID 0.90 threshold. Additionally,two lane groups are anticipated to
operate at LOS F with v/c ratios exceeding 1.00:
D The westbound througWright-hum lane group is anticipated to operate at LDS F with a vie ratio
of 1.08 during the AM peak hour
o The southbound thmughFfightttiuu lane group is anticipated to operate at LOS F with a vie ratio
of 1.14 during the FM peak hour
+ As with 2025 background traffic conditions,two mitigation opliom are rero:mmiended=
o Option 1 —Reconstruct as a multilane roundabout —two entering and exiting lanes on the
Cloxwdale Road approaches and one shared throughuleft-turn lane and one nghf-ftwn lane on
the Amity Road approaches
■ The intersection is programmed in the IFI'%T to be widened-reconstmcted as a multilane
roundabout v6ithtwo entering and exiting lanes on the Chnwdale Road approaches and one
entering and exiting lane on the Amity Road approaches_The additional right-turn lames on
the eastbound and westbound approaches are not programmed in the IF%'IP but are needed
to mitigate 2025 background traffic operations_
■ As a multilane roundabout with the lane configurations as programmed in the U YVR, the
1wesdxmnd approach is anticipated to operate at LOS F with a We ratio of 0.97 during the
AM peak hour, and the eastbound approach is anticipated to operate at LOS F with a v c
ratio of 1.01 during the PM peak hour,exceeding ACHD 0.85 threshold
■ With the additional right-turn lanes on the eastbound and westbound approaches, the
intersection is anticipated to operate a LOS C:with all lane groups operating at LOS D or
better with vic ratios of 0.82 or less dosing the peak hours
• Option 2—C.'onstructright-turn lanes on the southbouud and westbound approaches with the existing
signal
o With the adddonal right-turn lanes,the rnTrall intersection is anticipated to operate at LOS D
with a ylc ratio less than 0.90 during the peak hours_All lane groups are anticipated to Operate
at LOS E or better with i�c ratios of 0.98 or less during the peak hours
+ The intersection is anticipated to exceed tnimmuum operational thresholds and trigger mitigation
improvements by 2023 with an additional traffic increase of approximately 290 vph during the PM
peak hour beyond 2020 existing traffic vohunes
Traffic counts should be recollected in the future to verify background traffic growth, site
de--mkpreat,and improvemn needs
4.2 The estimated site tfaffrc as a percentage of the 2025 total traffic at the study area intersections are:
il Eagle Road and Amity Road intersection—AM peak=5.DI/e,Phi peak=4.5%
■ Hillsdale Avemie and Ammty Road intersection—AM Peale=8.9%.Phi peak= 10.2%
■ C'lm-erdale Road and Amity Road intersection—AM Peak=3.%.PM peak=4.3%
■ Amorita A�-enue and Amity Road intersection—AM Peak—6.5%,PM peak=7.9%
January 2021 S
37 Centerville Subdivision
MPP20-0018/ H-2021-0046
Traffic Impact Study
Centerville Subdivision-Meridian,Ildaho
4.3 With 2025 total traffic, both study area roadway segments on Amity RDad between Eagle Road and
ClovTrdale Road are antlticipatedta continue to exceed ACID kn el of semce planning thresholds with the
existing lane configuration during the peal:hours. The study area roadway segmems,capacity deficiencies,
and proposed mitigation improvements are=
i Amur Road segment between Eagle Road and MRsdale Avenue(two options)
• The anticipated peak hoar diri?cuonal volume on this roadway segment is 854 Kph in the AM peak
hour and 911 Kph in the FM peak hour,exceeding ACHD 720 xphthreshold
• Option 1—Widen to five lanes
o Based on the pMected.votumes,this AntiityRoad segnieui needs five In to meetACHDLOS
planning threshold
• Option 2—Widen to three lanes as programmed in ACED GIP plus pay into the Priority Co!mdor
Fund
This Amity Road segue is constrained to a maximum of three laties=
■ According to ACHD Master Street Map{A Iv1 Amity Road is id m ified for three laces
presmmtioa between Eagle Road and C:lo-tiTfdale Road
■ According to ACHD 2020 CIP, Amity Road is programmed to be need to three lanes
between Eagle Road and Cloverdale Road between 2036 and 2040
o This Amity Road segment is anbc4xded to oontil a to exceed ACED LDS planning threshold
during the PM shculderhotx as a three-lane minor arterial.Therefore.ACED should=,estigate
into de,relopiug a Priority Corridor Fund for fifixe imprm-ements on Amity R-aad The
developer may request to enter into a Development Agreement and pay into the Pnonty CWndor
Fund an aimcnmt to be deumnmed by ACHD to offset the dz%,elopment impacts.
• This Aniihy Road segment is ancipated to exceed ACM LOS planning threshold by 2023 with an
additional traffic increase of approximately 105 Kph during the PM peak hour
Traffic counts should be recollected in the hime to resift' background traffic groin site
de--Tlopnient,and imprmemient needs
Amity Road segment between Hillsdale A%-enue and Cloverdale Road(taro options)
• The anticipated peak hour directional volume on this roadway stet is 811 vph in the AM peal-
hour and 876 Kph in the PM peak hour,exceeding ACHD 720-kph threshold
• Option 1—Widen to fih,-e lanes
Based on the projected volumes,this Amity Road segment need_five In to meetACHD LOS
planning threshold
• Option 2—Widen to three lanes as programmed in ACHD C W plus pay=the Pnonty Corridor
Fund
This Amity Road segue is constrained to a maximum ofthree lanes:
■ According to ACHD MSM,Amity Road is identified far three lanes preservation between
Eagle Road and Cknerdale Road
■ According to ACHD 2020 CIP, Amity Road is programmed to be widened to three lanes
between Eagle RDad and Cloverdale Road between 2036 and 2040
This Amity Road segment is anticipated to continue to exceed ACHD LOS planning threshold
during the PM shoulder hour as a three-Ltne mines arterial.Therefore,ACHD should investigate
into de-L elopmg a Priority Condor Fund for $ihxe imprmwelments on Anuh Road The
develcpeT ntay request to eater into a De-,�-elopmcnt Aunt and pay into the Priority Corridor
Fund an amount to be deumn ned by ACED to offset the de-�elopment impacts.
January 2021 9
38 Centerville Subdivision
MPP20-0018/ H-2021-0046
Traffic Impact Study
Centerville Subdivision-Meridian,Idaho
This Amity Road segmenct is anticipated to exoeed ACM LCkS planning threshold by 2023 with as
additional=ffic uu rease ofapproadmately 97 vph during the FM peak hm
Traffic oaunts should be recollected m the future to %may background traffic growth, site
deg e�t,and impro emeut needs
4.4 The estimated site traffic as a percentage-of the 2025 totat traffic on the study area road xuy segtneuts are:
i Amity Road between File Road and the site—A peak=9.8%,P peal.=9.9%
i Amity Road between the site and Ckw rdale Road—AM Feat€=6.Wo,PM peak—6.7°o
39 Centerville Subdivision
MPP20-0018/ H-2021-0046
Single-Lane Roundabout Template
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I
40 Centerville Subdivision
M P P20-0018/ H-2021-0046
Ada County Utility Coordinating Council
Developer/Local Improvement District
Right of Way Improvements Guideline Request
Purpose: To develop the necessary avenue for proper notification to utilities of local highway and
road improvements, to help the utilities in budgeting and to clarify the already existing process.
1) Notification: Within five (5)working days upon notification of required right of way improvements
by Highway entities, developers shall provide written notification to the affected utility owners and
the Ada County Utility Coordinating Council (UCC). Notification shall include but not be limited to,
project limits, scope of roadway improvements/project, anticipated construction dates, and any
portions critical to the right of way improvements and coordination of utilities.
2) Plan Review: The developer shall provide the highway entities and all utility owners with
preliminary project plans and schedule a plan review conference. Depending on the scale of
utility improvements, a plan review conference may not be necessary, as determined by the utility
owners. Conference notification shall also be sent to the UCC. During the review meeting the
developer shall notify utilities of the status of right of way/easement acquisition necessary for their
project. At the plan review conference each company shall have the right to appeal, adjust and/or
negotiate with the developer on its own behalf. Each utility shall provide the developer with a letter
of review indicating the costs and time required for relocation of its facilities. Said letter of review
is to be provided within thirty calendar days after the date of the plan review conference.
3) Revisions: The developer is responsible to provide utilities with any revisions to preliminary
plans. Utilities may request an updated plan review meeting if revisions are made in the
preliminary plans which affect the utility relocation requirements. Utilities shall have thirty days
after receiving the revisions to review and comment thereon.
4) Final Notification: The developer will provide highway entities, utility owners and the UCC with
final notification of its intent to proceed with right of way improvements and include the anticipated
date work will commence. This notification shall indicate that the work to be performed shall be
pursuant to final approved plans by the highway entity. The developer shall schedule a
preconstruction meeting prior to right of way improvements. Utility relocation activity shall be
completed within the times established during the preconstruction meeting, unless otherwise
agreed upon.
Notification to the Ada County UCC can be sent to:50 S. Cole Rd. Boise 83707, or Visit iducc.com
for e-mail notification information.
41 Centerville Subdivision
M P P20-0018/ H-2021-0046
Development Process Checklist
Items Completed to Date:
®Submit a development application to a City or to Ada County
®The City or the County will transmit the development application to ACHD
®The ACHD Planning Review Section will receive the development application to review
®The Planning Review Section will do one of the following:
❑Send a"No Review" letter to the applicant stating that there are no site specific conditions of approval at
this time.
®Write a Staff Level report analyzing the impacts of the development on the transportation system and
evaluating the proposal for its conformance to District Policy.
®Write a Commission Level report analyzing the impacts of the development on the transportation system
and evaluating the proposal for its conformance to District Policy.
Items to be completed by Applicant:
❑For ALL development applications, including those receiving a "No Review" letter:
• The applicant should submit one set of engineered plans directly to ACHD for review by the Development
Review Section for plan review and assessment of impact fees. (Note: if there are no site improvements
required by ACHD,then architectural plans may be submitted for purposes of impact fee assessment.)
• The applicant is required to get a permit from Construction Services(ACHD)for ANY work in the right-of-way,
including, but not limited to,driveway approaches, street improvements and utility cuts.
❑Pay Impact Fees prior to issuance of building permit. Impact fees cannot be paid prior to plan review approval.
DID YOU REMEMBER:
Construction (Non-Subdivisions)
❑ Driveway or Property Approach(s)
• Submit a "Driveway Approach Request"form to ACHD Construction (for approval by Development Services & Traffic
Services). There is a one week turnaround for this approval.
❑Working in the ACHD Right-of-Way
• Four business days prior to starting work have a bonded contractor submit a "Temporary Highway Use Permit
Application"to ACHD Construction—Permits along with:
a) Traffic Control Plan
b) An Erosion & Sediment Control Narrative & Plat, done by a Certified Plan Designer, if trench is >50' or you
are placing >600 sf of concrete or asphalt.
Construction (Subdivisions)
❑ Sediment&Erosion Submittal
• At least one week prior to setting up a Pre-Construction Meeting an Erosion &Sediment Control Narrative&Plan, done
by a Certified Plan Designer, must be turned into ACHD Construction to be reviewed and approved by the ACHD
Stormwater Section.
❑ Idaho Power Company
• Vic Steelman at Idaho Power must have his IPCO approved set of subdivision utility plans prior to Pre-Con being
scheduled.
❑ Final Approval from Development Services is required prior to scheduling a Pre-Con.
42 Centerville Subdivision
M P P20-0018/ H-2021-0046
Request for Appeal of Staff Decision
1. Appeal of Staff Decision: The Commission shall hear and decide appeals by an applicant of
the final decision made by the Development Services Manager when it is alleged that the
Development Services Manager did not properly apply this section 7101.6, did not consider all of
the relevant facts presented, made an error of fact or law, abused discretion or acted arbitrarily
and capriciously in the interpretation or enforcement of the ACHD Policy Manual.
a. Filing Fee: The Commission may, from time to time, set reasonable fees to be charged
the applicant for the processing of appeals, to cover administrative costs.
b. Initiation: An appeal is initiated by the filing of a written notice of appeal with the Secretary
and Clerk of the District, which must be filed within ten (10)working days from the date of
the decision that is the subject of the appeal. The notice of appeal shall refer to the
decision being appealed, identify the appellant by name, address and telephone number
and state the grounds for the appeal. The grounds shall include a written summary of the
provisions of the policy relevant to the appeal and/or the facts and law relied upon and
shall include a written argument in support of the appeal. The Commission shall not
consider a notice of appeal that does not comply with the provisions of this subsection.
c. Time to Reply: The Development Services Manager shall have ten (10) working days
from the date of the filing of the notice of appeal to reply to the notice of the appeal, and
may during such time meet with the appellant to discuss the matter, and may also consider
and/or modify the decision that is being appealed. A copy of the reply and any
modifications to the decision being appealed will be provided to the appellant prior to the
Commission hearing on the appeal.
d. Notice of Hearing: Unless otherwise agreed to by the appellant, the hearing of the appeal
will be noticed and scheduled on the Commission agenda at a regular meeting to be held
within thirty (30) days following the delivery to the appellant of the Development Services
Manager's reply to the notice of appeal. A copy of the decision being appealed, the notice
of appeal and the reply shall be delivered to the Commission at least one (1) week prior
to the hearing.
e. Action by Commission: Following the hearing, the Commission shall either affirm or
reverse, in whole or part, or otherwise modify, amend or supplement the decision being
appealed, as such action is adequately supported by the law and evidence presented at
the hearing.
43 Centerville Subdivision
M P P20-0018/ H-2021-0046
Request for Reconsideration of Commission Action
1. Request for Reconsideration of Commission Action: A Commissioner, a member of ACHD
staff or any other person objecting to any final action taken by the Commission may request
reconsideration of that action, provided the request is not for a reconsideration of an action
previously requested to be reconsidered, an action whose provisions have been partly and
materially carried out, or an action that has created a contractual relationship with third parties.
a. Only a Commission member who voted with the prevailing side can move for
reconsideration, but the motion may be seconded by any Commissioner and is voted on
by all Commissioners present.
If a motion to reconsider is made and seconded it is subject to a motion to postpone to a
certain time.
b. The request must be in writing and delivered to the Secretary of the Highway District no
later than 11:00 a.m. 2 days prior to the Commission's next scheduled regular meeting
following the meeting at which the action to be reconsidered was taken. Upon receipt of
the request, the Secretary shall cause the same to be placed on the agenda for that next
scheduled regular Commission meeting.
c. The request for reconsideration must be supported by written documentation setting forth
new facts and information not presented at the earlier meeting, or a changed situation that
has developed since the taking of the earlier vote, or information establishing an error of
fact or law in the earlier action. The request may also be supported by oral testimony at
the meeting.
d. If a motion to reconsider passes, the effect is the original matter is in the exact position it
occupied the moment before it was voted on originally. It will normally be returned to
ACHD staff for further review. The Commission may set the date of the meeting at which
the matter is to be returned. The Commission shall only take action on the original matter
at a meeting where the agenda notice so provides.
e. At the meeting where the original matter is again on the agenda for Commission action,
interested persons and ACHD staff may present such written and oral testimony as the
President of the Commission determines to be appropriate, and the Commission may take
any action the majority of the Commission deems advisable.
f. If a motion to reconsider passes, the applicant may be charged a reasonable fee, to cover
administrative costs, as established by the Commission.
44 Centerville Subdivision
M P P20-0018/ H-2021-0046