HomeMy WebLinkAbout2025-10-21 ACHD NW Miranda Gold,President
Alexis Pickering,Vice-President
ACHDKent Goldthorpe,Commissioner
Dave McKinney,Commissioner
/oa�
Patricia Nilsson,Commissioner
Date: October 21s', 2025
To: Ethan Mansfield, Hawkins Companies
Staff Contact: Matt Pak, Planner
Project Description: Syringa Crossing Mixed Use (NW)
Trip Generation: This development is estimated to generate 10,366 vehicle trips per
day, 1,166 vehicle trip per hour in the PM peak hour, based on the traffic impact study.
—Proposed Development Traffic Impact Study
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connecting you to more
Ada County Highway District•5800 N Meeker Avenue• Boise,ID•83713•PH 2O8-387-6100• FX 345-7650•www.achdidaho.org
Development Services Department
ACED
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Project/File: Syringa Crossing Mixed Use (NW) / MPP25-0009 / H-2025-0007
This is an annexation and rezone application to allow for the future development of a
mixed-use project which is anticipated to consist of 10 commercial lots and 86 multi-
family residential units on 30.67 acres.
This application also includes the annexation and rezoning of three adjacent parcels
that comprise of an existing church, office space and natural gas infrastructure on 1.95
acres. This additional acreage to be annexed is not a part of the proposed
development.
Lead Agency: City of Meridian
Site address: 320 W Amity Rd
Staff Approval: October 21 It, 2025
Applicant: Ethan Mansfield
Hawkins Companies
855 W Broad St
Boise, ID 83702
Staff Contact: Matt Pak
Phone: 208-387-6171
E-mail: mpak(a)achdidaho.org
Report Summary:
ACHD Planned Improvements............................................2
Level of Service Planning Thresholds.................................3
A. Site Specific Conditions of Approval ............................4
B. Vicinity Map.................................................................5
C. Site Plan ......................................................................6
D. Traffic Impact Study— Summary and Findings.............7
E. Findings for Consideration.........................................11
F. Policy.........................................................................18
G. Attachment 1 .............................................................26
H. Attachment 2 .............................................................34
I. Standard Conditions of Approval ...............................35
J. Conclusions of Law....................................................35
Request for Appeal of Staff Decision ................................36
1 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
ACHD Planned Improvements
1. Capital Improvements Plan (CIP)/ Five Year Plan (FYP):
• Amity Road is scheduled in the FYP as the Amity Corridor A project to be widened to 5-lanes
from SH-69 (Meridian Road) to Locust Grove Road with a construction year yet to be
determined.
• Victory Road is scheduled in the FYP as the Victory Corridor A project to be widened to either
3-lanes or 5-lanes from SH-69 (Meridian Road) to Locust Grove road with a construction year
yet to be determined.
• The intersection of Amity Road and Margaret Avenue is scheduled in the FYP as part of the
Amity Corridor A project to be improved with a pedestrian crossing with a construction year
yet to be determined.
• The intersection of Amity Road and Locust Grove Road is scheduled in the FYP to be
reconstructed as a multi-lane roundabout with 1-lane on the north leg, 1-lane on the south, 2-
lanes east, and 2-lanes on the west leg with a construction year yet to be determined.
• Victory Road is listed in the CIP to be widened to 3-lanes from Linder Road to Meridian Road
between 2031 and 2035.
• Lake Hazel Road is listed in the CIP to be widened to 3-lanes from Linder Road to SH-69
(Meridian Road) between 2036 and 2040.
• Linder Road is listed in the CIP to be widened to 3-lanes from Lake Hazel Road to Amity Road
between 2036 and 2040.
• Linder Road is listed in the CIP to be widened to 3-lanes from Amity Road to Victory Road
between 2036 and 2040.
• The intersection of Amity Road and SH-69 (Meridian Road) is listed in the CIP to be widened
to 6-lanes on the north leg, 6-lanes on the south, 7-lanes east, and 7-lanes on the west leg,
and re-signalized between 2031 and 2035.
• The intersection of Amity Road and Linder Road is listed in the CIP to be reconstructed as a
single lane roundabout 4-lanes on the north leg, 4-lanes on the south, 2-lanes east, and 2-
lanes on the west leg between 2036 and 2040.
• The intersection of Lake Hazel Road and SH-69 (Meridian Road) is listed in the CIP to be
widened to 6-lanes on the north leg, 6-lanes on the south, 7-lanes east, and 7-lanes on the
west leg, and re-signalized between 2036 and 2040.
2 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
Level of Service Planning Thresholds
1. Condition of Area Roadways
Traffic Count is based on Vehicles per hour(VPH)
Roadway Frontage Functional PM Peak Hour PM Peak Hour
Classification I Traffic Count Level of Service
*** SH-69 (Meridian 1,219-feet Principal Arterial 1,561 N/A
Road)
* Amity Road 1,169-feet Minor Arterial 347 Better than "E"
** Lyra Street 450-feet Collector N/A N/A
* Acceptable level of service for a two-lane minor arterial is "E" (575 VPH).
** Acceptable level of service for a two-lane collector is "D" (425 VPH).
*** ACHD does not set level of service thresholds for State Highways.
2. Average Daily Traffic Count (VDT)
Average daily traffic counts are based on ACHD's most current traffic counts.
• The average daily traffic count for SH-69 (Meridian Road) south of Victory Road was 33,588
on October 7th, 2021.
• The average daily traffic count for Amity Road between Linder Road and SH-69 (Meridian
Road) was 7,602 between October 16th and November 21st, 2024.
• There are no current traffic counts available for Lyra Street.
3 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
A. Site Specific Conditions of Approval
This application is for annexation and rezone only. Site specific conditions of approval will be established
as part of the future development application.
1. 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.
2. 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.
3. Comply with all Standard Conditions of Approval.
4 Syringa Crossing Mixed Use NW
MPP25-0009/ H-2025-0007
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5 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
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6 Syringa Crossing Mixed Use NW
MPP25-0009/ H-2025-0007
D. Traffic Impact Study - Summary and Findings
1. Traffic Impact Study
Kittleson & Associates prepared a traffic impact study (TIS) for the proposed Syringa Crossing
Mixed Use Development (Meridian Amity Mixed-Use Development). Staff has reviewed the
submitted traffic impact studies for consistency with ACHD policies and practices and may have
additional requirements beyond what is noted in the TIS. Staff comments and recommendations on
the submitted traffic impact study can be found below.
The TIS evaluates both the north and south sides of the proposed Syringa Crossing Mixed Use
project, however, the north side is only proceeding with an annexation and rezone application which
is the subject of this report. An executive summary of the findings as presented by Kittleson &
Associates can be found as attachment 1.
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.
• If the impacted roadway segments and/or intersections are programmed as funded in
the Five Year Plan (FYP) 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 FYP or the CIP; the applicant may (i) analyze the shoulder hour, defined as the hour
prior to after the determined peak hour within the two-hour peak period, (sometime
analyzed as hour before or after peak period) 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 measures beyond improvements from District policy,
such as: off-site sidewalks, off-site 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 7205.3.1 states that Level of Service
Planning Thresholds have been established for principal arterials and minor arterials within
7 Syringa Crossing Mixed Use NW
MPP25-0009/ H-2025-0007
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 on Trip Capture: Throughout the traffic impact study review process, ACHD
staff raised concerns regarding the internal trip capture used in the analysis. The original study
noted a trip capture rate of 30 to 50% and a revised study included a trip capture rate of 13-
20% (depending on the land use). The applicant's engineer did correctly use the methodology
established in NCHRP 684, however, does not accept the presented trip capture rate.
The applicant has indicated that site is multi-use and that contributes to trip capture rate. While
there are a mix of uses proposed on the site plan they are not integrated, as the multi-family is
stand alone and separated from the commercial uses by parking lots with no clear vehicular
access via drive aisles or dedicated pedestrian facilities. The commercial uses are oriented
towards SH-69 and include auto oriented uses (fast-food with drive-thru, drive-thru coffee shop,
gas station, etc.).
Because of the mix of uses, the layout of the site plan and parking lots, and prior experience
with trip capture, ACHD will not be accepting any trip capture for this development.
c. Staff Comments/Recommendations: After reviewing the information provided in the traffic
impact study and ACHD's own analysis the improvements necessary to mitigate the impact of
the proposed Syringa Crossing Mixed Use Subdivision are noted below.
The recommended mitigation is as follows:
(XX%) = percent of site generated traffic on off-site roadways at buildout.
Intersections
SH/69 (Meridian Rd) /Amity Rd Intersection 08%):
The traffic impact study notes that to operate at an acceptable level of service planning
threshold the SH-69/Meridian Road/Amity Road intersection should be improved as a 7 x 9
intersection when the site generates 378 trips in the PM peak. However, it was determined that
the construction of the above-mentioned improvements to the east leg of the intersection is
infeasible due to the existing right-of-way constraints. Additionally, the site's frontage on Amity
Road does not provide adequate length to taper the roadway from the 7-lanes on the west leg
of the intersection to the existing 2-lanes to the west of the site. Therefore, the applicant should
be required to improve the west leg of the intersection to 5-lanes, with 2 receiving through-lanes,
1 left-turn lane, 1 through-lane and 1 shared through/right-turn lane. The applicant is also
required to adjust the striping on the east leg to reflect this configuration and make any
necessary modifications to the existing signal.
Although not required, it is recommended that the applicant also improve/widen the east leg to
5-lanes to match the west leg.
The applicant should be required to obtain plan approval and enter into a signal agreement with
ACHD for the intersection modifications.
The signal agreement should include requirements that the intersection is designed with 2
receiving lanes, 1 left-turn lane, 1 through lane and one through/right-turn lane on the west leg
and any modifications to the east leg of the intersection. Additional improvement may be
required by ITD on the north and south legs of the intersection and would need to be included
as part of the agreement. The agreement should also note that the applicant is responsible for
8 Syringa Crossing Mixed Use NW
MPP25-0009/ H-2025-0007
all costs associated with the design, and installation of the signal modifications, hardware, and
that improvements are not eligible for reimbursement by ACHD.
In order to ensure the intersection will be improved when warranted, the applicant should be
required to modify the existing signal prior to the final plat or development applications which
generate the equivalent of 350 PM peak hour trips. The following items must be in place prior
to plan approval for the final plat or development application which generates 350 PM peak hour
trips.
• Signal Agreement
• Full design and approved plans for the intersection.
The applicant should be required to coordinate with ITD for the mitigation on the north and south
legs of the SH-69/Meridian Road and Amity Road intersection.
If the applicant is unable to make the modifications to the signal when the site generates 350
PM peak hour trips, the development will need to be put on hold until the signal modifications
are in place.
Linder Road /Amity Road (15%):
The traffic impact study notes that to operate at an acceptable level of service planning
threshold the Linder Road and Amity Road intersection should be improved with the
construction of a single-lane roundabout or as a 3 x 3 signalized intersection. However, it was
determined that the construction of a signal or roundabout at the intersection is infeasible due
to right-of-way constraints. Additionally, this intersection is programmed and funded in the CIP
to be reconstructed as a single lane roundabout between 2036 and 2040. Therefore, consistent
with ACHD's Alternative Mitigation policy, 7106.7.3, no mitigation is required.
Hematite Avenue /Amity Road:
Although it is not explicitly included as part of the Mitigation Timing & Threshold Evaluation on
page 80 of the traffic impact study, the need for a signal at the Hematite Avenue/Amity Road
intersection (site access C) is noted throughout the traffic impact study.
Because the traffic impact study did not include a threshold for when the intersection should be
signalized, the applicant should be required to submit a signal warrant analysis for the Hematite
Avenue/Amity Road intersection when Hematite is extended to intersect Amity Road, and the
site generates 425 PM peak hour trips. If it is determined that the signal is warranted, then the
applicant should be required to install the signal at that time.
The applicant should be required to construct the Hematite Avenue/Amity Road intersection of
as a signalized 3 X 4 intersection with 3-lanes on the north/south legs and 4-lanes on the
west/east legs, as described below.
• Northbound and southbound approaches — one left-turn and one shared through/right-
turn lane
• Westbound and eastbound approaches—one left-turn, two through, and one dedicated
right-turn lane
The applicant should be required to enter into a signal agreement with ACHD to ensure that the
traffic signal is installed when it is warranted. The signal agreement should note that the
applicant is responsible for all costs associated with the hardware, design, and installation of
the traffic signal, and that this improvement is not eligible for reimbursement by ACHD. The
applicant will need to order and purchase the signal hardware as ACHD does not have these
materials available for this project.
9 Syringa Crossing Mixed Use NW
MPP25-0009/ H-2025-0007
To ensure that the traffic signal is constructed with the lane configuration as described above,
the following items must be in place prior to plan approval for the final plat or development
application which generates 425 PM peak hour trips.
• Signal Agreement
• Full design and approved plans for the intersection
The Hematite Avenue/Amity Road intersection is located off site and will be constructed through
an adjacent development, Storyrock Subdivision. If the intersection is not constructed when the
Syringa SW development generates 425 PM peak hour trips, then the applicant should be
required to provide a road trust deposit in the amount of$85,000 for the cost of 1/3 of the signal.
See finding 4 and 5 for information on Hematite Avenue.
Roadway Segments
Amity Road — Hematite Avenue to SH-69/Meridian Road (40%):
The traffic impact study notes that Amity Road between the new collector, Hermatite Avenue,
and SH-69/Meridian Road is anticipated to exceed ACHD's acceptable level of service planning
thresholds when the site generates 830 PM peak hour trips. The recommended mitigation is
widening Amity Road to 5-lanes between Hermatite Avenue and SH-69/Meridian Road.
The intersection of Amity Road and SH-69/Meridian Road will need to be widened when the
site generates 378 PM peak hour trips, sooner than when the roadway segment widening is
recommended. However, intersection improvements will take a significant portion of the site's
frontage on Amity Road. To reduce construction impacts to the traveling public (road closures
and detours) and on future residents and tenants of this development it is recommended that
the widening of Amity Road be done at the same time as the intersection improvements, when
the site generates 350 PM peak hour trips.
Site Access Analysis
Site Accesses D & E onto Amity Road:
The applicant has proposed to construct two driveways from the site onto Amity Road. Through
the pre-application process, staff raised concerns regarding the number of driveways proposed
on Amity Road. ACHD Number of Driveways on Arterials policy limits the number of driveways
onto an arterial roadway to those that are warranted or necessary to serve the development.
The need for two driveways onto Amity Road was not demonstrated though the traffic impact
study. Additionally, the applicant is proposing to construct Hermatite Avenue, a public collector
roadway, to provide access to Amity Road. ACHD's Access Management policy states that if a
property has frontage on more than one street, access shall be taken from the street having the
lesser functional classification. Therefore, only one driveway from the site onto Amity Road
should be approved. The driveway should be located minimum of 660-feet west of the Amity
Road/SH-69 intersection to provide greater queue length storage at the adjacent intersections.
Staff recommend that this driveway be approved as a temporary full access driveway and be
restricted to left-in/right-in/right-out when the Hermatite Avenue/Amity Road intersection is
signalized. The applicant should provide a road trust deposit to restrict the driveway to left-
in/right-in/right-out. The amount of the road trust deposit will be determined during plan review.
This driveway may be further restricted in the future as traffic conditions warrant, as determined
by ACHD or if the west leg of the Amity Road/SH-69/Meridian Road intersection is widened
beyond 5 lanes.
10 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
E. Findings for Consideration
This application is for annexation and rezone only. Listed below are some of the findings for consideration
that the District may identify when it reviews future development application(s). The District may add
additional findings for consideration when it reviews a specific redevelopment application.
ACHD does not require frontage improvements as part of this type of development application.
1. State Highway SH-69 (Meridian Road)
SH-69 (Meridian Road) is under the jurisdiction of the Idaho Transportation Department (ITD). The
applicant(s), the City of Meridian, and ITD should work together to determine if additional right-of-
way or improvements are necessary on SH-69 (Meridian Road).
At the time of this staff report ITD has not provided comments on this development application.
2. SH-69 (Meridian Road)/Amity Road Intersection
a. Existing Conditions: The Amity Road/SH-69/Meridian Road intersection is improved as a
signalized 3 X 5 intersection with 3-lanes on the east and west legs and 5-lanes on the north
and south legs.
b. Applicant Proposal: The applicant is proposing to widen and modify the existing signalized
intersection with 7-lanes on the east leg, 3-lanes on the west leg, 7-lanes on the north leg and
6-lanes on the south leg as part of the Syringa Crossing Mixed Use SW application.
Staff Comments/Recommendations: The applicant's proposal is consistent with the CIP for
the west approach of the intersection, which is planned for 7-lanes. However staff does not
recommending the widening of the west approach of the intersection to 7-lanes as part of this
application. It was determined that the applicant's proposal is infeasible due to right-of-way
constraints and taper lengths needed to accommodate the proposed widening.
Consistent with finding and recommendations of the traffic impact study, the applicant should
be required to widen the west leg of the intersection to 5-lanes, with 2 receiving through-lanes,
1 left-turn lane, 1 through-lane and 1 shared through/right-turn lane. This will require
adjustments the striping on the east leg to reflect this configuration and the applicant should
make any necessary modifications to the existing signal. Although ACHD cannot require the
applicant to improve or widen the eastern leg of the intersection, staff recommends the applicant
also improve/widen the east leg to 5-lanes to match the west leg.
Prior to the final plat or plan approval for development applications which generate the
equivalent of 350 PM peak hour trips the applicant should be required to enter into a signal
agreement with ACHD to ensure that the traffic signal is widened and modified when it is
warranted. The signal agreement should note that the applicant is responsible for all costs
associated with the hardware, design, and installation of the traffic signal, and that this
improvement is not eligible for reimbursement by ACHD. The applicant will need to order and
purchase the signal hardware as ACHD does not have these materials available for this project.
The following times should be provided prior to plan approval for the final plat or development
applications which generate 350 PM peak hour trips:
• Signal Agreement
• Full design and approved plans for the intersection
Consistent with the CIP, the applicant should be required to dedicated total 124-feet of right-of-
way 62 —feet from centerline to accommodate the future widening of the of the west approach
of the Amity Road/SH-69/Meridian Road intersection consistent with the CIP. The right-of-way
dedication should extend from Meridian Road west approximately 800-feet and then taper to
11 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
100-feet of total right-of-way dedication (50-feet from centerline) for the remainder of the site's
frontage on Amity Road.
The applicant controls both the north and south sides of Amity Road within the influence area
of the intersection making the widening to 5-lanes and the right-of-way dedication feasible.
The applicant should be required to coordinate with ITD for the mitigation on the north and south
legs of the Amity Road/ SH-69/Meridian Road intersection
3. Amity Road
a. Existing Conditions: Amity Road is improved with 2-travel lanes and no curb, gutter or
sidewalk abutting the site. There is 50 to 80-feet of right-of-way for Amity Road (27 to 40-feet
from centerline).
b. Applicant Proposal: The applicant is proposing to improve Amity Road as '/2 of a 59-foot wide,
5-lane arterial street section with curb, gutter, an 8-foot wide landscape strip and 10-foot wide
multi-use pathway abutting the site.
c. Staff Comments/Recommendations: The applicant's proposal exceeds District policy and
should not be approved, as proposed. Due to safety and constructability concerns, ACHD would
not allow half of a 5 lane roadway to be constructed without matching improvements on north
side of the roadway.
However, consistent with findings and recommendations of the traffic impact study, the
applicant should be required to improve Amity Road as a full 59-foot wide, 5-lane arterial street
section with vertical curb, gutter, an 8-foot wide landscape strip and 10-foot wide multi-use
pathway on both sites of the roadway, from SH-69/Meridian Road to the proposed collector
roadway, Hermatite Avenue. Amity Road should be required to be widened at the same time as
the Amity Road/SH-69/Meridian Road intersection improvements, when the site generates 350
PM peak hour trips.
The 5-lane segment of Amity Road may need to taper prior to Hematite Avenue due to potential
right-of-way constraints west of the proposed collector roadway. The applicant should be
required to coordinate the widening of Amity Road and the tapers with District Development
Review staff prior to plan approval for the final plat or development application which generates
350 PM peak hour trips.
4. Lyra Street (East of Solaris Avenue)
a. Existing Conditions: Lyra Street is improved with 2-travel lanes, vertical curb, gutter, an 8-foot
wide landscape strip and 5-foot wide sidewalk abutting the site's north property line. There is
20 to 29-feet of right-of-way for Lyra Street (0-feet from centerline).
b. Applicant Proposal: The applicant is not proposing any additional dedication of right-of-way
or frontage improvements to Lyra Street abutting the site.
a. Staff Comments/Recommendations: The applicant's proposal does not meet District policy
and should not be approved, as part of a future development application.
As part of a future development application, the applicant should be required to dedicate right-
of-way to 2-feet behind back of sidewalk, or for detached sidewalk, the applicant may reduce
the right-of-way to 2-feet behind back of curb and provide a permanent right-of-way easement
from the right-of-way line to 2-feet behind back of sidewalk.
Consistent with District Minor Improvements policy, the applicant should be required to repair
or replace any damaged or deficient transportation facilities on Street Name abutting the site,
consistent with the current version of PROWAG, as part of a future development application.
12 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
5. Lyra Street (West of Solaris Avenue) / Hermatite Avenue
a. Existing Conditions: Lyra Street (west of Solaris Avenue) and Hermatite Avenue do not exist
internal to the site.
b. Applicant Proposal: The applicant is proposing to construct Lyra Street as a 33-foot wide
collector street section with vertical curb, gutter, an 8-foot wide landscape strip and 5-foot wide
detached concrete sidewalk on both sides of the roadway. The applicant is proposing to
continue Lyra Street south as Hermatite Avenue internal to the site.
Where Lyra Street becomes Hermatite Avenue, the applicant is proposing to construct
Hermatite Avenue with vertical curb, gutter, an 8-foot wide landscape strip and 5-foot wide
detached concrete sidewalk on the east side of the roadway. On the west side of the roadway,
the applicant is proposing to construct only vertical curb and gutter (as shown below).
3!
b. Staff Comments/Recommendations: The applicant's proposal to construct Lyra
Street/Hermatite Avenue as a 33-foot wide collector street section does not meet District policy
and should not be approved, as part of a future development application. As part of a future
development application, the applicant should be required to construct Lyra Street/Hermatite
Avenue as a 36-foot wide collector street section or as a 26-foot wide collector street section, if
10-foot wide multi-use pathways are desired, to meet District policies listed on page 20.
6. Hermatite Avenue/Amity Road Intersection
a. Existing Conditions: Hermatite Avenue does not exist internal to the site.
b. Applicant's Proposal: The applicant is proposing to construct Hermatite Avenue, to intersect
Amity Road, located 1,209-feet west of SH-69 (Meridian Road).
c. Staff Comments/Recommendations: The applicant's proposal meets District policy and
should be approved, as part of a future development application.
As part of the approved Syringa Crossing Mixed Use SW development, the applicant is required
to construct a signalized intersection with 3-lanes on the north/south legs and 4-lanes on the
west/east legs, as described below:
• Northbound and southbound approaches — one left-turn and one shared through/right-turn
lane
• Westbound and eastbound approaches — one left-turn, two through, and one dedicated
/right-turn lane
If the signalized intersection has not been constructed at the time of Syringa Crossing Mixed
Use NW moving forward, the applicant should be required to construct the signalized
intersection, as described above, consistent with the with staff comments/recommendations
listed in the Traffic Impact Study Summary and Findings.
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The applicant should be required to enter into a signal agreement with ACHD to ensure that the
traffic signal is installed. The signal agreement shall note that the applicant is responsible for all
costs associated with the design, hardware and installation of the traffic signal, and that this
improvement is not eligible for reimbursement by ACHD. The applicant will need to order and
purchase the signal hardware as ACHD does not have these materials available for this project.
To ensure that the traffic signal is constructed when warranted and with the lane configuration
as described above, the following items must be in place prior to plan approval for the final plat
or development application which generates 425 PM peak hour trips:
• Signal Agreement
• Full design and approved plans for the intersection
7. Roadway Offsets
a. Existing Conditions: There are no roadways constructed within the site.
b. Applicant's Proposal: The applicant is proposing to construct Lyra Street, a collector roadway,
to intersect Solaria Avenue, a local roadway, located in alignment with Lyra Street (measured
centerline-to-centerline).
The applicant is proposing to construct Hermatite Avenue, a collector roadway, to intersect
Amity Road, a minor arterial, located 1,217-feet west of SH-69 (Meridian Road) (measured
centerline-to-centerline).
The applicant is proposing to extend Lyra Street, a local stub street, from the site's west property
line to intersect Hermatite Avenue, a collector roadway, located 1,176-feet north of Amity Road
(measured centerline-to-centerline).
c. Staff Comments/Recommendations: The applicant's proposals meet District Roadway Offset
policies and should be approved, as part of a future development application.
8. Stub Streets
a. Existing Conditions: Lyra Street, a local street, stubs to the site's west property line and is
proposed to be extended into the site to intersect Hermatite Avenue.
Solaria Avenue, a local street, stubs to the site's north property line.
b. Applicant Proposal: The applicant is proposing to extend Lyra Street into the site, to intersect
the proposed Hermatite Avenue.
The applicant is not proposing to extend Solaria Avenue into the site; the applicant is proposing
to construct a private access for the site located in alignment with Solaria Avenue (measured
centerline-to-centerline).
c. Staff Comments/Recommendations: The applicant's proposals meet District policy and
should be approved, as part of a future development application.
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9. Driveways
9.1 Amity Road
a. Existing Conditions: There is an existing 12-foot wide unimproved driveway from the site onto
Amity Road, located 988-feet east of SH-69 (Meridian Road) (measured centerline-to-
centerline).
There is an existing 12-foot wide unimproved driveway from the site onto Amity Road, located
1,232-feet east of SH-69 (Meridian Road) (measured centerline-to-centerline).
b. Applicant's Proposal: The applicant is proposing to close the existing driveway located 988-
feet east of SH-69 (Meridian Road) with curb, gutter, landscaping and sidewalk.
The applicant is proposing to reconstruct the existing driveway located 1,232-feet east of SH-
69 (Meridian Road) as Hermatite Avenue, a collector roadway.
The applicant is proposing to construct a paved 26-foot wide curb return type driveway from the
site onto Amity Road, located 333-feet east of SH-69 (Meridian Road) (measured centerline-to-
centerline).
The applicant is proposing to construct a paved 31-foot wide curb return type driveway from the
site onto Amity Road, located 753-feet east of SH-69 (Meridian Road) (measured centerline-to-
centerline).
c. Staff Comments/Recommendations: The applicant's proposal to close the existing driveway
from the site onto Amity Road meets District policy and should be approved, as part of a future
development application.
The applicant's proposal to reconstruct the existing driveway located 1,232-feet east of SH-69
(Meridian Road) as Hermatite Avenue, a collector roadway, meets District policy and should be
approved, as part of a future development application.
The applicant's proposal to construct two new driveways from the site onto Amity Road does
not meet District policy, and should not be approved, as proposed.
ACHD Number of Driveways on Arterials policy limits the number of access points onto an
arterial roadway to those that are warranted or necessary to serve the development. The need
for two accesses onto Amity Road was not demonstrated though the traffic impact study.
Additionally, the applicant is proposing to construct Hermatite Avenue, a public collector
roadway, internal to the site to provide access to Amity Road. ACHD Access policy states that
if a property has frontage on more than one street, access shall be taken from the street having
the lesser functional classification. Therefore, only one driveway from the site onto Amity Road
should be approved as part of this development application.
Consistent with the staff comments/recommendations listed in the Traffic Impact Study
Summary and Findings, the applicant should be required to construct a maximum 36-foot wide
paved curb return type driveway from the site onto Amity Road, located 660-feet west of the
Amity Road/SH-69/Meridian Road intersection (measured centerline-to-centerline), to provide
greater queue length storage at the adjacent intersections. The driveway should be constructed
as a temporary full access driveway and be restricted to left-in/right-in/right-out when the
Hermatite Avenue/Amity Road intersection is signalized. The applicant should provide a road
trust deposit to restrict the driveway to left-in/right-in/right-out. The amount of the road trust
deposit will be determined during plan review. This driveway may be further restricted in the
future as traffic conditions warrant, as determined by ACHD or if the west leg of the Amity
Road/SH-69/Meridian Road intersection is widened beyond 5 lanes.
9.2 Lyra Street
a. Existing Conditions: There are no existing driveways from the site onto Lyra Street.
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b. Applicant's Proposal: The applicant is proposing to construct a 31-foot wide curb return type
driveway from the site onto Lyra Street, located in alignment with Solaria Avenue (measured
centerline-to-centerline).
The applicant is proposing to construct a 26-foot wide curb return type driveway from the site
onto Lyra Street, located 115-feet west of Solaria Avenue (measured centerline-to-centerline).
The applicant is proposing to construct a 29-foot wide curb return type driveway from the site
onto Lyra Street, located 191-feet west of Solaria Avenue (measured centerline-to-centerline).
c. Staff Comments/Recommendations: The applicant's proposal to construct a driveway from
the site onto Lyra Street, located in alignment with Solaria Avenue meets District policy and
should be approved, as part of a future development application.
The applicant's proposal to construct a driveway from the site onto Lyra Street, located 115-feet
west of Solaria Avenue does not meet District Driveway Location (Stop Controlled Intersection)
or Successive Driveway policies and should not be approved, as part of a future development
application.
The applicant's proposal to construct a driveway from the site onto Lyra Street, located 191-feet
west of Solaria Avenue meets District policy and should be approved, as part of a future
development application.
9.3 Hermatite Avenue
a. Existing Conditions: Hermatite Avenue is not currently constructed.
b. Applicant's Proposal: The applicant is proposing to construct a 28-foot wide driveway from
the site onto Hermatite Avenue, located in alignment with Lyra Street (measured centerline-to-
centerline).
The applicant is proposing to construct a 34-foot wide driveway from the site onto Hermatite
Avenue, located 595-feet north of Amity Road (measured centerline-to-centerline).
c. Staff Comments/Recommendations: The applicant's proposals meet District policy and
should be approved, as part of a future development application.
10. Traffic Calming
a. Applicant's Proposal: The applicant is proposing to construct Lyra Street/Hermatite Avenue
to be greater than 750-feet in length.
b. Staff Comments/Recommendations: As part of a future development application, the
applicant should be required to construct Lyra Street/Hermatite Avenue to meet District Traffic
Calming policies listed on page 24.
11. Bridge for Carson Lateral Crossing
As part of a future development application, the District will require that the applicant have ACHD
approved plans for the crossing of the Carson Lateral (Amity Road) prior to the pre-construction
meeting and final plat approval. Note: Timing of project plan submittals should take into account
review times, lead time for precast members and potential roadway closures. To ensure
construction prior to irrigation season, approval of the project plans must be attained by January
15th. The District retains the right to modify road closure approvals on any project based on the
needs of the District. Construction of projects approved after January 15th may be postponed until
after irrigation season is over in October. It is recommended that bridge submittals be submitted
before the end of the current irrigation season to ensure the best time frame for construction is
attained. Submittals will need to include the street section extending over the bridge to ensure the
requirements of the roadway are met.
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12. Other Access
Amity Road is classified as a minor arterial roadway. Lyra Street and Hermatite Avenue 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.
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F. Policy
1. Federal Accessibility Design Guidelines and Standards
District policy 7203.1.1 states that developers shall follow the current version of the U.S. Access
Board's Accessibility Guidelines for Pedestrian Facilities in the Public Right-of-Way(PROWAG), 36
CFR Part 1190, September 7, 2023; (Also see, https//www.access-board.gov/prowag and
https//www.access-board.gov/files/prowag/planning-and-design-for-alternatives.pdf for additional
information).
2. Minor Improvements
Minor Improvements Policy: District Policy 7203.3 states that minor improvements to existing
Highways adjacent to a proposed development may be required. These needed transportation
facilities are to correct deficiencies or replace deteriorated facilities. Included are sidewalk and/or
bike lane construction or replacement (with physical buffers if missing and needed); construction of
transitional sidewalk segments; crosswalk construction or replacement; curb and gutter
construction or replacement; repair, replacement or expansion of curb extensions; replacement of
unused driveways with curb, gutter, sidewalk, repair or addition of traffic calming or speed mitigation
features; installation or reconstruction of pedestrian ramps; pavement repairs; signs, motor vehicle,
pedestrian and bicycle traffic control devices; and other similar items. The current version of
PROWAG will determine the applicable accessibility requirements for alterations and elements
added to existing streets. ACHD staff is responsible for identifying the minor improvements that
would be proportionate to the size and complexity of the development.
3. Livable Street Performance Measures
District policy 7203.8 states that ACHD has adopted performance measures (level of stress) for
evaluating the experience of bicyclists and pedestrians. ACHD seeks to create a transportation
network that serves all ages and abilities. Bike and pedestrian facilities built through development
should achieve a bike and pedestrian level of traffic stress 1 or 2, with no new bike lane below a
minimum of 5-feet.
4. Amity Road
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. Improvements shall include transitional segments in accordance with the
current version of PROWAG.
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, Livable Streets Design Guide, and the most current ACHD Livable Streets Performance
Measures Plan as adopted by the ACHD Commission. The developer or engineer should contact
the District before starting any design.
Street Section and Right-of-Way Width Policy: District Policies 7205.2.1 & 7205.5.2 state that
the standard 7-lane street section shall be 81-feet (back-of-curb to back-of-curb). This width
typically accommodates three travel lanes in each direction, a continuous raised or landscaped
median with intermittent turn lanes, and curbs and gutters. A 7-lane road shall also include a
minimum 10-foot wide multi-use path outside the curb line on both sides with an 8-foot wide buffer
from back-of-curb. Other Level 3 bike facility treatments as defined in the ACHD Bike Master Plan
may be approved at the discretion of the ACHD Development Review Supervisor. The standard
right-of-way width for a 7-lane arterial is 124-feet.
Street Section and Right-of-Way Width Policy: District Policies 7205.2.1 & 7205.5.2 state The
standard 5-lane street section shall be 59-feet (back-of-curb to back-of-curb). This width typically
accommodates two travel lanes in each direction, a continuous center left-turn lane or landscaped
median with intermittent turn lanes, and curbs and gutters. A 5-lane road shall also include a
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MPP25-0009/ H-2025-0007
minimum 10-foot wide multi-use path on both sides with an 8-foot wide buffer from back-of-curb.
Other bike facility treatments as defined in the ACHD Bike Master Plan may be approved at the
discretion of the ACHD Development Review Supervisor. If an interim on-street bike lane is required
in order to connect to existing facilities, the street section shall be 75-feet to allow for a 5-foot wide
bike lane and 3-foot wide painted buffer. The standard right-of-way width for a 5-lane arterial is 100-
feet.
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.
Pedestrian Facilities: District Policy 7205.5.7 requires a concrete sidewalk at least 5-feet wide are
required on both sides of all arterial streets. A parkway strip at least 8-feet wide between the back-
of-curb and street edge of the sidewalk is required to provide increased safety and protection of
pedestrians. Alternatively, on roadways identified for improvement in the Capital Improvement Plan,
a minimum 10-foot wide multi-use path may be required. The path shall be placed in accordance
with planned buildout in the Master Street Map with a minimum 8-foot wide planter strip as
measured to the closest edge of the path. Street trees are encouraged between the pedestrian
facility and the roadway when irrigation and maintenance will occur by the adjacent property owner
or HOA through an approved license agreement. Consult the District's planter width policy if trees
are to be placed within the parkway strip. In some instances, to match existing conditions, a
minimum 7-foot wide sidewalk may be constructed next to the back-of-curb. ACHD Development
Review staff will be responsible for determining the required facility. Vertical hardscape alternatives
to street trees may be considered in the buffer space when street trees are not practicable.
Detached sidewalks and multi-use paths are encouraged and should be parallel to the adjacent
roadway. Pedestrian facilities will only be allowed to deviate from a straight line parallel to the
roadway when authorized by Development Review staff to accommodate site specific conditions
(i.e., street trees, utilities, etc.).
Appropriate easements shall be provided if public pedestrian facilities are placed out of the 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 pedestrian facility. Pedestrian facilities shall either be located wholly within the
public right-of-way or wholly within an easement.
Curb ramps or blended transitions shall be provided to connect the pedestrian access route at each
pedestrian street crossing in accordance with the current version of PROWAG. Provide detectable
warning surface in accordance with the current version of PROWAG.
Roadways Outside City's Area of Impact: District Policy 7205.2 states that if a proposed
development abuts a paved road outside a City's area of impact, the District may consider waiving
the requirement to construct sidewalk or multi-use path along the arterial roadway. If this waiver is
granted by a Development Services Supervisor, other requirements may be established to
accommodate pedestrians and non-motorized travel.
Frontage Improvements Policy: District Policy 7205.2.1 states that the developer shall widen the
pavement to a minimum of 17-feet from centerline plus a 3-foot wide gravel shoulder adjacent to
the entire site. Curb, gutter and additional pavement widening may be required (See Section
7205.5.5).
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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 Planned
Commercial Arterial with 5-lanes and a 59-foot street section within 99-feet of right-of-way.
5. Lyra Street/Hermatite Avenue
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. Improvements shall
include transitional segments in accordance with ADA and the current version of PROWAG.
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. ACHD reserves the right to require bicycle and pedestrian
facilities above those identified in the Livable Streets Design Guide and Master Street Map to
ensure the safest facility possible based on current best practice.
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 or multi-use path and the location and use of the roadway. The right-of-way
width may be reduced, with District approval, if the sidewalk or multi-use path 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 47-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. If a multi-use path is determined to be the required treatment, the street section shall be
reduced to 37-feet. If it is determined a continuous center left-turn lane is not appropriate and a
path is installed, the street section may be reduced to 26-feet.
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.
At the discretion of Traffic Engineering staff, adjustments may be made to the street section,
including removal of the continuous center turn lanes or modification to lane widths, where no
driveways or intersections are present or to ensure adequate space for pathways and buffers.
Half Street Policy: District Policy 7206.2.2 required improvements shall consist of pavement
widening to one-half the required width, including curb, gutter and concrete sidewalk (minimum 5-
feet), plus 12-feet of additional pavement widening beyond the centerline established for the street
to provide an adequate roadway surface, with the pavement crowned at the ultimate centerline. A
3-foot wide gravel shoulder and a borrow ditch sized to accommodate the roadway storm runoff
shall be constructed on the unimproved side. Alternatively, on roadways identified as low-stress
bikeways in ACHD's Bike Master Plan, a minimum 10-foot wide multi-use path may be required in
lieu of sidewalks. ACHD Development Review staff will be responsible for determining the required
facility. The path shall be built 8-feet behind the top back of curb as measured to the closest edge
of the path. Street trees are encouraged between the pedestrian facility and the roadway when
irrigation and maintenance will occur by the adjacent property owner or HOA through an approved
license agreement. Vertical hardscape alternatives to street trees may be considered in the buffer
space when street trees are not practicable.
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Pedestrian Facilities: 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 8-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. Sidewalk constructed next to the back-of-curb shall be a minimum of 7-feet wide.
Alternatively, on roadways identified as low-stress bikeways in ACHD's Bike Master Plan, a
minimum 10-foot wide multi-use path may be required in lieu of sidewalks. ACHD Development
Review staff will be responsible for determining the required facility. The path shall be built 8-feet
behind the back-of-curb as measured to the closest edge of the path. Street trees are encouraged
between the pedestrian facility and the roadway when irrigation and maintenance will occur by the
adjacent property owner or HOA through an approved license agreement. Vertical hardscape
alternatives to street trees may be considered in the buffer space when street trees are not
practicable.
Pedestrian facilities should be parallel to the adjacent roadway. Pedestrian facilities will only be
allowed to deviate from a straight line when authorized by Development Review staff to meet site
specific conditions (i.e., street trees, utilities, etc.).
Appropriate easements shall be provided if public sidewalks or multi-use paths are placed out of
the 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 or multi-use path. Sidewalks shall either be located
wholly within the public right-of-way or wholly within an easement.
Curb ramps or blended transitions shall be provided to connect the pedestrian access route at each
pedestrian street crossing in accordance with the current version of PROWAG. Provide detectable
warning surface in accordance with the current version of PROWAG.
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. A new collector roadway was identified on the MSM with the street
typology of Commercial Collector. The new collector roadway should intersect Amity Road at the
site's southern property line and continue through the property to align with Lyra Street at the site's
northern property line.
6. Roadway Offsets
Collector Offset Policy: District policy 7205.4.2 states that the optimum spacing for new
signalized collector roadways intersecting minor arterials is one half-mile.
District policy 7205.4.2 states that the optimum spacing for new signalized collector roadways
intersecting principal arterials is one half-mile.
District policy 7206.4.2 states that the preferred spacing for new collectors intersecting existing
collectors is '/4 mile to allow for adequate signal spacing and alignment.
District policy 7206.4.3 states that access is typically prohibited within the influence area of an
existing or future roundabout intersection, which is generally considered the area from the
intersection to the far end of the splitter islands.
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).
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District policy 7208.4.2, requires commercial roadways intersecting other local streets (residential,
industrial or commercial) to provide a minimum offset of 125-feet from any other roadway or
intersection (measured centerline to centerline).
District policy 7209.4.2, requires industrial roadways intersecting other local streets (residential,
industrial or commercial) to provide a minimum offset of 125-feet from any other roadway or
intersection (measured centerline to centerline).
7. Stub Streets
Stub Street Policy: District policy 7207.2.4.3 states that stub streets will be required to provide
circulation or to provide access to adjoining properties. Stub streets will conform with the
requirements described in Section 7207.2.4, except a temporary cul-de-sac will not be required if
the stub street has a length no greater than 150-feet. A sign shall be installed at the terminus of
the stub street stating that, "THIS ROAD WILL BE EXTENDED IN THE FUTURE".
In addition, stub streets must meet the following conditions:
• A stub street shall be designed to slope towards the nearest street intersection within the
proposed development and drain surface water towards that intersection; unless an
alternative storm drain system is approved by the District.
• The District may require appropriate covenants guaranteeing that the stub street will remain
free of obstructions.
Temporary Dead End Streets Policy: District policy 7207.2.4.4 requires that the design and
construction for cul-de-sac streets shall apply to temporary dead end streets. The temporary cul-
de-sac shall be paved and shall be the dimensional requirements of a standard cul-de-sac. The
developer shall grant a temporary turnaround easement to the District for those portions of the cul-
de-sac which extend beyond the dedicated street right-of-way. In the instance where a temporary
easement extends onto a buildable lot, the entire lot shall be encumbered by the easement and
identified on the plat as a non-buildable lot until the street is extended.
8. Driveways
8.1 Amity Road
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.
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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-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.
8.2 Lyra Street/Hermatite Avenue
Access Policy: District Policy 7206.4.1 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,
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MPP25-0009/ H-2025-0007
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.
Minor Improvements Policy: District Policy 7203.3 states that minor improvements to existing
Highways adjacent to a proposed development may be required. These needed transportation
facilities are to correct deficiencies or replace deteriorated facilities. Included are sidewalk and/or
bike lane construction or replacement (with physical buffers if missing and needed); construction of
transitional sidewalk segments; crosswalk construction or replacement; curb and gutter
construction or replacement; repair, replacement or expansion of curb extensions; replacement of
unused driveways with curb, gutter, sidewalk, repair or addition of traffic calming or speed mitigation
features; installation or reconstruction of pedestrian ramps; pavement repairs; signs, motor vehicle,
pedestrian and bicycle traffic control devices; and other similar items. The current version of
PROWAG will determine the applicable accessibility requirements for alterations and elements
added to existing streets. ACHD staff is responsible for identifying the minor improvements that
would be proportionate to the size and complexity of the development.
9. Traffic Calming
Speed Control and Traffic Calming Policy: District policy 7206.3.8 states that collector streets
should be designed to discourage speeds above 35 MPH and in a residential area, collector streets
should be designed to discourage speeds above 30 MPH. The design of collector 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,
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 a maintenance and/or license agreement.
10. 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.
11. 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.
12. Gas Pipeline
The Williams Pipeline falls within the proposed development. Coordination with the owner of the
pipeline prior to final design is recommended to ensure that their requirements are met. ACHD
requires written approval from the owner of the pipeline prior to plan acceptance if public street
improvements are proposed or required within the pipeline easement.
13. 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
24 Syringa Crossing Mixed Use NW
MPP25-0009/ H-2025-0007
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.
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MPP25-0009/ H-2025-0007
G. Attachment 1
July 26,2U4
Meridian Amity mixed-Use Development Executive Summary
EXECUTIVE SUMMARY
Kittelson S.Associates,Inc. [Kittelsonj has prepared a Transportation Impact Study ITIS)for the Meridian
Amity mixed-Ilse Development(Ihe Project)in Meridion,Idaho.The Meridan Amity mixed-Use
Oevelopment is split into two properties located on bath the north and south side of Amity Rood west of
State Highway(SH 69).The proposed sites are currently vacant Farmland,consisting of approArnolely55.5
acres,30.8 acres to the north and 24.7 acres to the south.
Hawkins Cam panics plan to build approximately 48 reskknticd units,20,8D0 sf of office and 107,605 sf of
commercial uses in the development area north of Amity Road_They plan to build 322 two.Ihree,and Four-
story mulF-family units,34,920 sF of commercial uses and to Fueling stations in the development area south
of Amity Road.The anticipated buildout year Is 2DM8_Access to the development is proposed via SH 69,
Amity Road and the Future Collector Roadway.The Future Collector Roadway is generally located on the
western boundary of the proposed development area.The northern development proposes two accesses
anlo SH 69(one of which is a deeded,constructed access and a second one which is deeded;both were
approved by ITD on Februory 24,2012-see Appendix A Far flD Approval Letter),two accesses onto Amity
Road and four accesses onto the Future Collector Roadway_The southern development proposes one
access onto SH 69,two accesses onto Amity Road and two accesses onto the Future Collector Roadway.
All proposed accesses meet access spacing requirements for either the Ada County Highway District or
Idaho Tronsportation Deportment.Exhibit 1 shows the study intersections and proposed access locations
included in the year 2D28 total traffic condlfions_
a
G W
7
1
BL1FLT 5Y DEVELOPMENT [
1 AMfry Rp +
iI
l
BUILT BY OTHERS
- I
bUILS BY DEVELOPMENT � }
Exhibit 1:Study Arec. Y
The TIS resulted in the following findings and recommendations.
Kirtelsan K Assoc ates,Inc_ Page t
26 Syringa Crossing Mixed Use NW
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July 26,2024
Meridian Amity Mooed-Use Development Executive Summary
FINDINGS
YEAR 2022 EXISTING CONDITIONS
■ All study intersections were found to operate acceptably during the existing weekday AM and PM
peak hours,except for:
o SH 69/Amity Road(AM R PM Peak Houi]:
• During the AM Peak Hour,the overall intersection exceeds ITD's V/C threshold of 0.90 and
operates at LOS F_Further,the northbound shared through-ri hp I lone and westbound
shared through-right lane are over capacity and operate of LOS F.The eastbound shared
through-right lone exceeds ITID's VIC threshold of 0.90 and operates at LOS F.
• During the PM Peak Hour,the overall intersection exceeds ITD's VIC threshold of 0.90.
Further,the westbound shored through:Wht lane is over capacity and operates at LOS F.
The southbound shared through-right lane exceeds ETD's VIC threshold of 4.90.
• Year 2022 existing conditions operations can be mitigated by adding separate eastbound
and westbound right-turn lanes to the intersection-These improvements ore included in
ACHD's Capital Improvement Plan(CIP(_
■ All study roadway segments were found to meet ACHD LOS volume thresholds under year2022
existing conditions-
■ Crash data at the study intersections and roadway segments far the most recent five years of
complete data(2015-2022)were analyzed.The intersection of SH 69/Amity Road was Found to
experience a high injury crash rate over the five-year analysis.The signal timing was updated during
the Five-year span,the crashes should be reviewed when five years of data is available post signal
timing updates.
YEAR 2028 BACKGROUND TRAFFIC CONDITIONS
■ Year 2028 background traffic volumes were developed by applying a 2.6%annual compounded
growth rate on SH 69 and a 7%annual compounded growth rate on oil other roadways.
■ Several intersections and roadway improvements are planned in the study area.These improvements
include:
o ACHD CIP,
■ RD2020-0020:Amity Rau(SH 69 to Locust Grave Rd)- Reconstruct/widen to five-lanes.
• I142WD-WS0:Linder Road/Amity Road-Reconstruct the intersection as a single-lane
roundabout.(2036-20401
• I142020-10M:SH 69/Amity Road.Replacelmodify signal.Reconstn,ct/widen approaches.
12031-20351_This project would add the following travel lanes:southbound right-tum lane,
northbound right-lurn lane,2Ma eastbound left-turn lane,2rd eastbound through lane,
eastbound right-tum lane.2"a westbound left-tum lane,21d westbound through lane,and
westbound right-turn lone.
o ACHD IFYWP'
• Amity Rd(SH 69 to Locust Grove Rd). Reconstruct/widen to five-lanes.Design year 2023-
2024,construction year is future-
0 SH 69 Corridor Study-ITD i5 currently conducting a corridor study on SH 69_
• The current vision for the corridor is to have signalized intersections at the major mile
(section line(intersections(Amity Road)and RIROLI intersections at the'h mile intersections
between the major mile intersections.
■ The vision also includes widening SH 69 to three through lanes in each direction north of
Avalon Drive(located 5 miles south of Amity Road M_
■ All study intersections were found to operate acceptably during the year 2028 background traffic
conditions weekday AM and PM peak hours,except for:
Kittelson&Associates.Inc- Pape
27 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
July 26,2024
NMendion AnAy Mixed-Use Development Executive Summory
o SH 69/Amity Rood(AM R PM Peak Hour)
• During the AM Peak Hour,the overall intersection is expected to operate over capacity-
Further,the eastbound left-tum lone,westbound shared through:nght lone,northbound
shared through-right lane,and southbound left-turn lane are expected to operate over
capacity and at LOS F_
• During the PM Peak Hour,the overall intersection is expected to operate over capacity.
Further,the eastbound left-tum lone,westbound shared through:!�Qht lone and southbound
shared through-right lane are expected to operate over capacity and at LOS F.
• Year 2028 background traffic conditions can be mitigated with the following improvements
in addition to those identified under year=existing conditions:
+ Westbound approach:second through lone,
+ Eastbound approach:second through lane,
+ Northbound approach,third through lone and right-turn lane,and
+ Southbound approach:third through lane and right-turn lone.
4 All right-turn lanes at the intersection and the through lanes on Amity Road are included in
ACHD's CIP.The northbound and southbound through lanes on SH 69 are included in RD's SH 64
Corridor Study-Under Road/Amity Road(AM Peak Hour)
• During the Am Peak Hour,the critical movement,eastbound approach.is expected to
operate over capacity and at LOS F.
■ During the PM Peak Hour,the critical movement,westbound opnroach,is expected to
operate over capacity and at LOS F_
• Year 2028 background traffic conditions can be mitigated with a single-lane roundabout or
a traffic signal.The single-lane roundabout is included in ACHD's CIP.
■ All study roadway segments were Found to meet ACHD LOS volume thresholds under year 202E
background traffic conditions.
TRIP GENERATION
■ Northern Property
o The site plan for the northern property includes the following land uses:
• 74 Single Family Attached Units
■ 24 Multi-Family Units
• 20,800 SFof Office
• 63,332 SF of Grocery Uses
• 4,863 SF of Fast Food
■ 4,700 SF Bank with a Drive Through
• 22,750SFof Fast Casual Restaurants
• 11,9605Fof Sit-Down Restaurants
4 The northern property is estimated to generate a total of 7,719 daily net new trip ends,of these
502 net new tripe nds are estimated to occur in the weekday AM peak hour 1279 inbound/223
outbound],and 8916 net new trip ends are estimated to occur in the weekday PM peak hour
(473 inbound 1423 outboundM-
■ Southern Property
o The site plan for the southern property includes the folowing land uses:
• 322 multi-Family Units
• Coffee Shop with Two Drive Through Lanes
• 4,950 SF of Fast Casual Restaurants
■ &650 SF of Retail Shops
• 9,000 SF of Sit-Down Restaurants
• 5,700 SF of Fast Food
10 Fueling Position Gas Station with 7,150 5F Convenience Store
Kittelson 8 Associates,Inc. Page 3
28 Syringa Crossing Mixed Use NW
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July 26.2024
Meridian Amity Mixed-Use Development Executive Summary
o the southern property is estimated to generate a total of 4,490 daily net new trip ends,of these
389 net new trip ends are estimated to occur in the weekday AM peak hour(169 inbound/220
outbound),and 395 net new trip ends are estimated to occur in the weekday P!N peak hour
(233 inbound 1 162 outboundM.While PM peaks for developments with retail uses typically are
higher than the Am peak under this analysis the Fast-food,coffee shop and gas station land uses
cause the peaks to be similar in total trip generation_
YEAR 2028 TOTAL TRAFFIC CONDITIONS
■ All study intersections were found to operate acceptably during the year 2028 total traffic conditions
weekday AM and PM peak hours,except for,
o SH 69/Amity Road(AM&PM Peak Hour)
• During the AAA peak hour,the overall intersection is expected to operate over capacity.
Further,the eastbound le Ft-tum lone,westbound shared throughtight lone,northbound left-
turn lane,northbound shared throughjight lone,and soulhbound left turn lone are
expected to operate over capacity and at LOS F.The soufhbound shared thrOWh-right
lone is expected to operate under capacity but over VIC-0.90 and of LIDS F_
■ During the PM peak hour,the overall intersection is expected to operate over capacity-
Further,the eastbound left-turn lane,westbound shared through:bght lone,northbound left-
turn lane,southbound left-turn lane and soufhbound shared throuQh-right lane are
expected to operate over copocity and at LOS F_The northbound shored throe hg_-6g_hf
lone is expected to operate under capacity but over VIC-0.90 and at LOS F.
• Year 2028 total traffic conditions can be mitigated to under capacity with the following
improvements in addition to those identified under year 2028 background conditions:
+ Westbound approach:fight-turn overlap phase,
Sou thbound approach:right-turn overlap phase,
+ Eastbound approach:second left-turn lane.
+ Westbound approach::second left-turn lane.
+ Northbccnd approach:second left-turn lane.
Sotithbound approach:second left-turn lane.
All left-and right-turn(ones at the intersection and the through lanes on Amity Road ore
included in ACHD's CIP.The northbound and south bound through lanes on SH 69 are
included in ITD's SH 69 Corridor Sfudy_
+ The above improvements bring the intersection to below capacity but above ACHD
and ITD thresholds-The shoulder hour traffic was evaluoted and meets ACHD and ITD
intersection thresholds.
+ Alternative mitigations ore proposed along the site including multiuse paths along
Amity Road and SH 69 and a multi-Use path from the northwest to southeast corner of
the north property area.
o Linder Rood/Amity Road(AM a PM Peak Hour)
• During the AM peak hour,the eastbound and northbound oporoaches ore expected to
operate over capacity and at LOS F.Further the westbound approach is expected to
operate under capacity but over V/C=0.90_
• During the PM peak hour,the westbound and soufhbound approaches ore expected to
operate over capacity and at LOS F.Further the eastbound approach is expected to
operate under capacity but over V/C=0.90 and at LOS F.
• Yeor 2028 total traffic conditions can be mitigated with a single-lone roundabout or a
traffic signal.The single-lane roundabout is included in ACHD's CIP.
o Site Access RISH 64(FM Peak Hour)
• During the PM peak hour,the eastbound approach is expected to operate under capacity
but at LOS F.
■ Year 2028 tolal Iraffic conditions con be mitigated with a soufhbound right-turn lone.
o Site Access D/Amlty Road(AMR PM Peak Hour)
Kittelson K Associates,Inc_ Page 4
29 Syringa Crossing Mixed Use NW
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July 26,2024
Meridian Amity(Nixed-Use Development Executive Summary
• During the AM peak hour,the northbound and southbound approaches are expected to
exceed capacity and operate of LOS F.
■ During the P!N peak hour,the critical movement,the southbound approach is expected to
exceed capacity and operate at LOS F_Additionally,the northbound approach is
expected to operate at LDS F_
• Year 2028 total traffic conditions can be mitigated by instolfing a traffic signal Of restricting
the access to Right-In Right-Out Left-In (RIROLIM at Site Access D.If Site Access D is restricted
to a RIR0Ll.the timing of this restriction should not occur until the Future Collector Roadway
is built and can provide access to the southern property area_Otherwise,the southern
property area has no way to turn left and head west on Amity Rood.
■ All study roadway segments were found to not meet ACHD LDS volume thresholds under yecr2028
total traffic conditions.including}:
o Amity Rood between the Linder Road and Future Collector Roadway(AM a PM Peak Hour)
■ During the AM and PM Peak HouiS.the roadway segment is expected to operate above
ACHD's planning threshold for a two-lane minor arterial.
■ Shoulder hour traffic volumes meet ACHD volume thresholds.
• Alternative mitigations are proposed along the site including multi-use paths along Amity
Road and SH 69 and a onultrUse path From the northwest to southeast corner of the north
property area.
o Amity Road between the Future Collador Roadway and 5H 64(AM i PM Peak Hour)
• During the AM and PM Peak Hours,the roadway segment is expected to operate above
ACHD's planning threshold for a two-lane minor arterial.
■ Year 202E total traffic conditions can be mitigated by widening Amity Road to rive lanes
From the Future Collector Roadway to SH 69_
SITE ACCESS EVALUATION
■ Per ACHD Pofcy Manual 7204-4.4 alternative access scenarios were evaluated with and without direct
access to the arterials of SH 69 and Amity Read.The results or those alternative access scenarios
returned the following,
o In each access scenario.all site access points and intersections ore projected to operate
without additional required mitigations,except for:
• Removal of Site Access B.D,and E Scenario
+ Under this access scenario,the intersections of SH 69/Lyra Street and Site Access
C/Amity Road ore projected to operate below standards.To mitigate these
conditions,the intersection of SH 691Lyra Street would require a south bound right-turn
lone and the intersection of Site Access C1Amity Road would need to be signalized.As
mentioned earlier,Site Access B is deeded based on ITD's February 24,2012.approval.
Therefore,removing this access is not a reasonable option to be considered for the
proposed development.
■ Removal of Site Access D and EScenorio
Under this access scenario,the intersection or Site Access C/Amity Rood is projected
to operate below standards.To mitigate this condition,the intersection would need to
be signalized.
o The accesses in question should be approved for the following reasons:
Site Operations and Circulation
+ Site Access B is a proposed right-in/right-ouf that provides access to the commercial
portion of the development from SH 69.The access meets ITD's access spacing
requirements for a right-in/right-out access on SH 69_ITD approved this right-in/right-out
access on February 24,2012,so the property owner has authority to construct this
access with the proposed development.Without Site Access B,the traffic operations
at the SH 64/Lyra Street intersection deteriorate resulting in signal warrants being met.
Kittelson 8 Associates,Inc. Page 5
30 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
July 26,262d
Meridian Arrdy M iked-Use Development Executive Summary
With the proposed access,the accesses onto SH 69,Lyra Street and Site Access k ere
projected to operate acceptably.
• Site Access D is a proposed Full-movement access onto Amity Road from the
development.The access meets ACHD's access spacing requirements for a Full-
movement access on Amity Road.Site Access D provides the trips associated with the
commercial portions of the development to make left turns onto Amity Road.Without
Site Access D,the Future Collector Roadway is projected to exceed ACHD's roadway
segment planning threshold and the Future Collector Roadway/Amity Road
intersection would require signolixotion to meet ACHD's standards.Additionally,Site
Access D provides a full-access connection to the southern property area,which is
needed since the Future Collector Roadway is located on an adjacent property and
not part of the southern property area_
+ Site Access E is a proposed right-in/right-out access onto Amity Road.Site Access E
provides alleviation to Site Access D_The access meets ACHD's access spacing
requirements For a right-in/right-out access on Amity Road. Without Site Access E,the
delay and LOS at Site Access D would increase_With Site Access F,Site Access D
operations can be mitigated by widening Amity Road to a five-lone cross-section.
Without Site Access E,widening Amity Road does not mitigate the operations at Site
Access D,so a traffic signal is needed For mitigation.
• Site Access F is a proposed right-in/right-out access onto SH 69.Site Access F provides
alleviation to Site Access D.The access meets ITD's access spacing requiremenIs For a
right-in/right-ou I occess on SH 69.Without Site Access F,the delay and LOS at Site
Access D would increase.With Site Access F,Site Access D con be mitigated by
widening Amity Road to a five-lane cross-section.Without Site Access F.widening
Amity Road does not mitigate the operations at Site Access D,so a traffic signal is
needed Far mitigation.
is The following turn lanes are warranted per ACHD and/or FID policy at the Fallowing intersections and
site accesses,
o SH 69/site Access B
• Southbound Right-Turn Lane
o site Access C(Future Corector Roadway)/Amity Road
• Eastbound Left-Turn Lane
■ Westbound Left-Turn Lane
o site Access D/Amily Road
• Eastbound Left-Turn Lane
■ Eastbound Right-Turn Lone
■ Westbound Left-Turn Lane
• Westbound Right-Turn Lane
o site Access E/Amity Road
■ Eastbound Right-Turn Lane
• Westbound Right-Turn Lane
o SH 69/site Access F
• Southbound Right-Turn tone
■ The intersection sight distance evaluation identified that intersection sight distance can be achieved
at all the proposed site access locations_
RECOAI MENDATIONS
Based on the report's analyses and evaluation findings.Kittelson developed recommendations for the
Meridian Amity Mixed-Use Development.
Kittetsan&Associates,Inc_ Page is
31 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
July 26,2024
me6dian ArMy mixed-Use Development Execuffwe Summary
YEAR 2022 EXISTING CONDITIONS
a SH 691 Amity Road
0 Construct exck,sive right-turn lanes on the eastbound and westbound approaches(ACH❑CIP
IN202MM)
YEAR 2028 BACKGROUND CONDITIONS TRAFFIC MITIGATIONS
In addition to the mitigations outlined in the year 2022 existing conditions mitigations, the Following
intersections require additional mitigations under year 2028 background conditions:
■ SH 691 Amity Road
0 Widen Amity Road to two through loner in each direction (ACHO CIP IN2020-00A0(
o Construct exclusive right-turn lanes on the eastbound and westbound approaches(ACHD CIP
I N2020-0090)
0 Widen SH 69 to three through lanes in each direction(ITD SH 69 Corridor Plon)
o Construct exclusive right-turn lanes on the northbound and southbound approaches(AC HD CIP
I N2024-0090]
■ Under Road/Amity Road
o Install a single-lone roundabout(ACHD CIP IN2020-00s))
YEAR 2028 TOTAL TRAFFIC CONDITIONS TRAFFIC MITIGATIONS
In addition to the mitigations outlined in the year 2022 exisling conditons mitigations and year 202&
bcickground mitigations,the following additional mitigotions are needed to cccommodote the traffic from
the Meridian Amity Mixed-Use Development with all proposed accesses in place:
■ 5H 69/Amity Road
o Construct second left-turn lane on the eastbound opproach{ACHD CIP IN2020-0090]
0 Construct second left-turn lane on the westbound approach{AC HD CIP IN2020-0090]
0 Construct second left-turn lane on the northtz�ound approach
0 Construct second Iefl-turn lane on the south bound approach
o Install an overlap phase for the westbound right-turn movement
0 Install an overlap phase for the south bound right-turn movement
a Site Access D/Amfty Road
0 Restrict the access to a RIROLI of full-buildouI and when the FUIUfe Collector Roadway in place
on meth sides of Amity Raod or:
0 Install a lraffic signal
• Amity Road(Future Collector Roadway to 5H 69)
0 Widen Amity Road to five lanes between the future collector roadway and SH 69.two lanes in
each direction with center two-way left-turn lane(TWLTL(.
SITE ACCESSES
Under year 2028 total traffic conditions the site occesses should be constructed with the Following control
types.inane geometry and storage Lengths:
■ 5H 691 Lyra Street (Right-in i Right-out/Leftan�
o Control,Two-way stop control{iWSC(
0 EB Righl-Turn tone{f00'Storage]
0 SB Right-Turn Lane(already constructed
m 5H 691 Site Access B{Right-in 1 Right-outM
0 Control:TWSC
0 El)Right-Turn tone(100'Storage)
0 SB Right-Turn Lane(340'deceleration,and 180'Taper)
Kittelson&Associates,Inc. Parr.
32 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
July 26,2024
Nheridion Arnity Mined-Use Development Executive Summary
■ Site Access C (Future Collector Roadway]/Amity Rood(Full movement)
o Control-Signal
o EB Lett-Turn Lane(100'Storage}
o WB Leff-Turn Lane{100'Sloroge]
o NB Left-Turn Lane(100'Storage]
o SB Leff-Tum Lane(100'Storage)
■ Site Access a/Amity Read{Full movement in the interim and Righl-in/Right-out!Lett-in under full
bdld-out plus future Collector Roadway in place]
o Control,TWSC
o EB Lett-Turn Lane f 100'Storage]
o WB LefHurn Lane(100'Storage)
o WB Right-Turn Lane(125'Storage and 180'Taper}
o NB Left-Turn Lane(xx'Storage)-Interim Lone
o NB Right-Turn Lane(100'Storoge)
o SB Left-Tum Lane(XX'StorageI-Interim Lane
o S9 Right-Turn Lane(100'Storage)
■ Site Access E I Amity Road(Right-in/Right-out]
o Control_TWSC
o EB Right-Turn Lane(125'Storage and ISO'Taper]
o WB RIght-Turn Lane(125'Storage and 180'Taper]
o NB Right-Turn Lane[100'Stausge)
4 SB Right-Tum Lane(100'Storage)
■ Sid 691 Site Access F RRgght-r 1 Right-out}
o Control-TWSC
4 EB Right-Turn Lane f 100'Storage)
o SB Right-Tum Lane(340'Deceleration,and 180'Taper
■ Future Collector Roadway/Site Access G(full movement]
o Control-,TWSC
o WB Shared Left-Tum/Right-Turn Lane(50'Storage)
■ Future Collector Roadway/Site Access I (Full movement)
o Control:TWSC
o WB Shared Left-Tum/Right-Turn Lane[50'Storage)
a Site Access J/Future Collector Roadway (full movement)
o Control:TWSC
o NB Shared Lett-Turn/Right-Turn Lane(50'Storage]
a Site Access K I Future Collector Roadway(Full movement)
o Control,TWSC
4 NB Shared Leff-Turn/Right-Tum Lane(50'Storage)
■ Future Co€lector Roadway/Site Access L(full movement)
o Control,TWSC
4 WB Shared Left-Turn/Right-Turn Lane(50'Storage)
■ future Collector Roadway/Sile Access M(Full movement)
o Control:TWSC
o WB Shared Le It-Turn/Right-Turn Lone(50'Storage)
Construct all accesses to the development with the following designations:
■ All local streets within the development should be constructed wilt one travel lane in each direction,
unless otherwise noted.
■ Site accesses ore assumed to match the existing grade of the connected roadway at the intersection
and Lack at least one car length.Significant changes to the approach grade could impact the sight
distances-IF widening occurs along any of the site access roads,care should be token to ensure
adequate grades and intersection sight distance is maintalned.
Kitielson&Associates,Inc. Page S
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H. Attachment 2
July 26,2024
Meridim Am1ly Muted-Use Development Transportation Impact Analysrs
MITIGATION TIMING & THRESHOLD EVALUATION
For each of the mitigation needs identified,the number of site development Trips and opproAnnote year of
need for the mitigation was evaluated.Table 52 shows the recommended mitigations and thresholds.The
proposed mitigations build on the previous mitigation from existing to total troffiic.The estimated hips at
time of need represent the maximum number of trips the site can generate be Fore the proposed
mitigations ore needed_
Tobde 52.Mitigation Threshold Evaluation
Proposed Approx-year of
Yecffr4U22 X N/A ERR,WBR 2022 N/A
Year 2028 2^d EBT,2^tl WBT, Daily Tips,3,654
Background X N/A 3rd NBT,NOR, 2025 AM Peak Hour:342
3rd 5BT,SBR PM Peak Hour 378
2rd ILL
Year 2028 2-NBL Doily Trips:6,852
= Total Traffic X 16% 2�SBL 2026 AM Peak Hour:642
^ WBR(Overlap) PM Peak Hour.709
SBR(4verlapl
Year2022 X N/A N/A N/A N/A
Yea r2028
Background X N/A Single Lane Daily Tips:4,56E
Year202B Roundabout 2025 AM Peak Hour:429
< X 15% PM Peak Haur:473
Total Traffic
Year2022 N/A N/A N/A N/A
Yeor2026 N/A NIA N/A N/A
Background
Year 2428 Daily Tops:10.665
Total Traffic X 16% SBR 2028 AM Peak Hour:7%
PM Peak Hour.l,l 1 1
Year2422 N/A NIA N/A N/A
Yea r2428 N/A NIA N/A N/A
Background
Year 2026 RIROLI or Install Daily Tips:4,1 1 1
Total Traffic X 5� Signal 2025 AM Peak Hour:385
PM Peak Hour 425
Year2422 N/A NIA N/A N/A
Yea r2028
= N/A NIA N/A N/A
o Background
< � Year 202 8 X Widen to Frye-
Daily Tips:5,462
2 - Total Traffic d Lane Section 20Q6 AM Peak Hour,706
PM Peak Hour 830
miligaliom are reported per lone Eastbound northbound INBI,sorrlhbound I5B),left turn lone(L),Through lone(T),
riphl-tum lone(R)
Kittelson&Associates,Inc. Page 84
34 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007
I. 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), Public Right-of-Way Accessibility Guidelines (PROWAG), ISPWC, or ACHD
requirements. The applicant's engineer should provide documentation of 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
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.
J. 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.
35 Syringa Crossing Mixed Use NW
MPP25-0009/ H-2025-0007
Request for Appeal of Staff Decision
To request an appeal of a staff level decision, see District policy 7101.6.7 at
https://www.achdidaho.org/home/showpublisheddocument/452/638243231708370000
Request for Reconsideration of Commission Action
To request reconsideration of a Commission Action, see District policy 1006.11 at
https://www.achdidaho.org/home/showpublisheddocument/452/638243231708370000
36 Syringa Crossing Mixed Use NW
MPP25-0009 / H-2025-0007