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HomeMy WebLinkAbout2024-08-09 ACHD Alexis Pickering,President Miranda Gold,Vice-President Jim Hansen,Commissioner 10 ACHD Kent Goldthorpe,Commissioner Mr ww�m Dave McKinney,Commissioner Date: J u ly 9, 2024 To: Ella Passey, The Land Group Staff Contact: Dawn Battles, Senior Planner Project Description: Baratza Trip Generation: This development is estimated to generate 2,804 vehicle trips per day, 286 vehicle trips per hour in the PM peak hour, based on the traffic impact study. Proposed Development Traffic Impact Study Meets All ACHD Policies F Requires Revisions to meet No ACHID Policies •. • _ -•u i red Area Roadway Level of ACHD - . Service Improvements D• area roadways ■ •CHD's LOS Planning Thresh ■ • • • Livable Street Performance Measures •Area •.•s will meet • LOS Planning Thresholds in Pedestrian LTS 2 the future with planned Black Cat '•.• improvements? McMilla '•.• • Black Cat '•.• McMillan '•.• Is Transit Available? connecting you to more Ada County Highway District•3775 Adams Street•Garden City,ID•83714• PH 208387-6100•FX 345-7650•www.achdidaho.org Development Services Department 'ACHD connecting you to more Project/File: Baratza / MPP24-0008 / H-2024-0016 This is an annexation with a rezone from RUT(Rural-Urban Transition)to R-8 (Medium Density Residential) and R-15 (Medium-High Density Residential) zoning and a preliminary plat application to allow for the development of 377 lots consisting of 347 residential lots, 29 common lots and 1 right-of-way lot on 80-acres. The site is located at the southeast corner of McMillan Road and Black Cat Road. Lead Agency: City of Meridian Site address: SE Corner of McMillan Road and Black Cat Road Staff Approval: July 9, 2024 Applicant: Ella Passey The Land Group 426 E. Shore Drive Eagle, ID 83616 Staff Contact: Dawn Battles, Senior Planner Phone: 208-387-6218 E-mail: dbattles(a)achdidaho.org Report Summary: ACHD Planned Improvements............................................2 Level of Service Planning Thresholds.................................2 A. Site Specific Conditions of Approval ............................3 B. Vicinity Map.................................................................6 C. Site Plan ......................................................................7 D. Traffic Impact Study— Summary and Findings.............8 E. Findings for Consideration.........................................11 F. Policy.........................................................................15 G. Attachments...............................................................23 H. Standard Conditions of Approval ...............................24 I. Conclusions of Law....................................................24 Request for Appeal of Staff Decision ................................26 1 Baratza/ MPP24-0008/ H-2024-0016 ACHD Planned Improvements 1. Capital Improvements Plan (CIP)/ Integrated Five Year Work Plan (IFYWP): • The intersection of McMillan Road and Black Cat Road is scheduled in the IFYWP to be reconstructed as a multi-lane roundabout with 4-lanes on the north leg, 4-lanes on the south, 2-lanes on the east, and 2-lanes on the west leg, in 2028, and will include an APS (accessible pedestrian signal) with LPI (leading pedestrian interval). • Bridge Number 1394 is scheduled in the IFYWP to be reconstructed and widened over the Lemp Canal on Black Cat Road as part of the McMillan Road and Black Cat Road roundabout project in 2028. • McMillan Road is listed in the CIP to be widened to 3-lanes from Black Cat Road to Ten Mile Road between 2031 and 2035 • McMillan Road is listed in the CIP to be widened to 3-lanes from McDermott Road to Black Cat Road between 2036 and 2040. • Black Cat Road is listed in the CIP to be widened to 5-lanes from Ustick Road to McMillan Road between 2031 and 2035. • Black Cat Road is listed in the CIP to be widened to 5-lanes from McMillan Road to Chinden Boulevard (US 20/26) between 2036 and 2040. 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 McMillan Road 2,654-feet Minor Arterial 371 Better than "E" Black Cat Road 1,315-feet Minor Arterial 471 Better than "E" * Acceptable level of service for a two-lane minor arterial is "E" (575 VPH). * Acceptable level of service for a three-lane minor arterial is "E" (720 VPH). 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 McMillan Road west of Black Cat Road was 7,800 on October 18, 2023. • The average daily traffic count for Black Cat Road north of Ustick Road was 9,848 on April 12, 2023. 2 Baratza/ MPP24-0008/ H-2024-0016 A. Site Specific Conditions of Approval 1. Provide an intersection analysis of Joy Street/McMillan Road/Grand Lake Way prior to ACHD's approval of the first final plat. Additional improvements may be required at this intersection based on the updated analysis. 2. Dedicate additional right-of-way on McMillan Road and Black Cat Road to accommodate the future construction of the multi-lane roundabout as provided in the design plans located under attachments on page 23. 3. Provide a road trust deposit in the amount of $54,900 prior to ACHD's signature on the first final plat in lieu of improving McMillan Road and Black Cat Road with pavement widening and a multi- use pathway within the extent of the future roundabout, as shown on the design plans under attachments on page 23. 4. Improve McMillan Road with 17-feet of pavement and a 3-foot gravel shoulder, a 12-foot wide gravel irrigation access road, as proposed, and a 10-foot wide multi-use pathway abutting the site and tie into the existing improvements east of the site. 5. Construct a dedicated westbound left-turn lane on McMillan Road when Grand Lake Way is constructed to intersect McMillan Road. Dedicate additional right-of-way as necessary to accommodate the turn lane. 6. Dedicate additional right-of-way to total 50-feet from centerline of Black Cat Road abutting the site, as proposed. 7. Improve Black Cat Road with 17-feet of pavement from centerline, a 3-foot wide gravel shoulder and 5-foot wide concrete sidewalk, as proposed, located a minimum of 47-feet from centerline abutting the site and tie into the existing improvements south of the site. 8. Provide a permanent right-of-way easement for public sidewalks placed outside of the dedicated right-of-way on McMillan Road and Black Cat Road. The easement shall encompass the entire area between the right-of-way line and 2-feet behind the back edge of the sidewalk. 9. Prior to the submittal of plans, the applicant should coordinate with Development Review staff regarding the analysis of the ground water monitoring report and use of the BMP. Permeable pavers may be necessary within the site to accommodate high ground water and are allowed, provided they are designed in accordance with ACHD Policy and Best Management Practices (BMP). 10. Coordinate with Development Services on the construction of pedestrian crossings and crossings at intersections to determine if they are required to be concrete or paved, consistent with the current version of PROWAG, if permeable pavers are approved within the site. 11. Extend Grand Lake Way into the site and construct the roadway as a 26-foot wide collector street section with vertical curb and gutter within 30-feet of right-of-way and a 10-foot wide landscape strip and a 10-foot wide multi-use pathway located within a 22-foot wide permanent right-of-way easement, as proposed. 12. Extend Bartok Avenue and Viso Street into the site and construct all the internal streets with the exception of Grand Lake Way, Quintale Street, and the three streets listed in Site Specific#11, as 33-foot wide local street sections with curb, gutter ,an 8-foot wide landscape strip located within 47- feet of right-of-way and 5-foot wide detached concrete sidewalk, as proposed. 13. Construct Quintale Street as a 33-foot wide local street section with vertical curb, gutter an 8-foot wide landscape strip located and 8-foot wide detached concrete sidewalk, as proposed. 3 Baratza/ MPP24-0008/ H-2024-0016 14. Construct three internal streets, shown below and in pink on image-page 12, as 33-foot wide street sections with curb, gutter and an 8-foot wide landscape strip on both sides of the roadway and 8- foot wide detached concrete sidewalk on one side of the roadway and 5-foot wide detached concrete sidewalk on the other side of the roadway listed below: • Bartock Avenue between Quintale Street and Street F • Street L between Quintale Street and Street F • Street F between Bartock Avenue and Street L 15. Construct Street C, Street D and the east end of Street H to intersect the proposed internal local streets to increase connectivity and reduce long time maintenance costs. 16. Construct 3 cul-de-sac turnarounds at the terminus of Street N and the west end of Street H, as proposed, designed with a minimum turning radius of 50-feet. 17. Dedicate right-of-way to 2-feet behind back of sidewalk, or for detached sidewalk, reduce the right- of-way width to 2-feet behind the back of sidewalk and provide a permanent right-of-way easement that extends from the right-of-way line to 2-feet behind the back of sidewalk. 18. Construct bulb-outs at the intersections of Quintale Street/Street A, Quintale Street/Bartok Avenue, Street F/Bartok Avenue, Viso Street/Street L and Viso Street/Street N. Provide a minimum of 24- feet of pavement between the bulb-outs at the intersections and provide written fire department approval for use of the bulb-outs. 19. Construct Grand Lake Way to intersect McMillan Road located 2,323-feet east of Black Cat Road and in alignment with Joy Street on the north side of McMillan Road across from the site, as proposed. 20. Construct Quintale Street to intersect Black Cat Road located 487-feet south of McMillan Road and in alignment with Quintale Street located on the west side of Black Cat Road across from the site, as proposed. 21. Construct two local streets to intersect Grand Lake Way, as proposed, located as follows: • Viso Street, located 658-feet south of McMillan Road • Street O, located 1,200-feet south of McMillan Road 22. Construct the internal local streets to align or offset by a minimum of 125-feet from any other street. 23. Close the two existing driveways onto McMillan Road located 160-feet east and 860-feet west of Joy Street with landscaping, sidewalk and fencing, as proposed. 24. Close the two existing driveways onto Black Cat Road located 487 and 855-feet south of McMillan Road with landscaping, sidewalk and fencing, as proposed. 25. Construct five 27-foot wide shared access driveways, as proposed, located as follows: • Onto Street A and in alignment with Street B • Onto Street A and in alignment with Street F • Onto Street L and in alignment with Street I • Onto Street L and in alignment with Street M • Onto Street O and in alignment with Street 4 Baratza/ MPP24-0008/ H-2024-0016 26. Traffic calming proposals are reviewed as part of the plan submittal process. Changes to the bulb- outs proposed for traffic calming may be required at the time of plan review, as determined by Development Review and Traffic staff. Bulb-outs may be used as traffic calming but should be designed with careful consideration for ADA requirements, drainage impacts, emergency services and driveway locations. Bulb outs proposed at pedestrian crossings shall be located in alignment and on both sides of the street. 27. Provide approved plans for the West Tap Sublateral Canal crossings 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. 28. Other than the access specifically approved with this application, direct lot access is prohibited to McMillan Road, Black Cat Road and Grand Lake Way and should be noted on the final plat. 29. 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. 30. 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. 31. Comply with all Standard Conditions of Approval. 5 Baratza/ MPP24-0008/ H-2024-0016 B. Vicinity Map _ F Sri-Si / wR CViC[ WRva: r �I E t � • I . • — -- — ,z It r, op . z o.- „r It ' r is 6 Baratza/ MPP24-0008/ H-2024-0016 C. Site Plan Baratza Subdivision Preliminary Plat I ir—f7rrT1-rf it ------r W 'd• ------" ----———— ,.u ^ -- ------------ ---- , ------------------------------------ ----------------- , , , 1 Mid, u � � m p(r0.PrQIIMIRary Plat-CO.er 7 Baratza/ MPP24-0008/ H-2024-0016 D. Traffic Impact Study - Summary and Findings 1. Traffic Impact Study CR Engineering, Inc. previously prepared a traffic impact study (TIS) for this site in 2021 for the proposed Jamestown Ranch development. A revised TIS was not required for the current proposal of the Baratza development as the increase in the number of lots was minimal. An executive summary of the findings as presented by CR Engineering, Inc. can be found under attachments on page 23. ACHD has reviewed the submitted traffic impact study for consistency with ACHD policies and practices and may have additional requirements beyond what is noted in the TIS. Staff comments and recommendations on the submitted traffic impact study can be found below. —W-Chinde(j)vd roe B Pa rk JOY 4 "- ,r i i uintIei St i I Intersections and roadway segment evaluated in the traffic impact study a. Policy: Mitigation Proposals: Mitigation recommendations shall be provided within the report. At a minimum, for each roadway segment and intersection that does not meet the minimum acceptable level of service planning threshold or v/c ratio, the report must discuss feasible measures to avoid or reduce the impact to the system. To be considered adequate, measures should be specific and feasible. Mitigation may also include: • Revision to the Phasing Plan to coincide with the District's planning Capital Projects. • Reducing the scope and/or scale of the project. 8 Baratza/ MPP24-0008/ H-2024-0016 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 Integrated Five Year Work Plan (IFYWP) or the Capital Improvements Plan (CIP); no alternative mitigation is required. • If the impacted roadway segments and/or intersections are not programmed in either the IFYWP or the CIP; the applicant may (i) analyze the shoulder hour, 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 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. Arterial Roadways Constrained by the Master Street Map: 7106.7.2 states that no mitigation is required on roadway segments built to the lane configuration identified in the Master Street Map Planned Lanes for Preservation. Roadway segments built to the identified configuration in the MSM are not considered for widening. b. TIS Findings: Staff has reviewed the submitted traffic impact study (TIS). The study found the following intersections and roadway segment deficiencies described below, coupled with the percentage site traffic contributions relative to the PM peak hour total traffic, followed with their recommendations for improvements. Roadway Segment • McMillan Road west of Ten Mile Road (14%) o Anticipated to exceed ACHD's acceptable Level of Service Planning Thresholds in the PM peak hour as a 3-lane roadway under 2025 total conditions but meets ACHD's acceptable Level of Service Planning Thresholds in the shoulder hour under 2025 total conditions. 9 Baratza/ MPP24-0008/ H-2024-0016 ■ Widen to 5-lanes between the site and Ten Mile Road Alternative mitigation recommended completing pedestrian improvements on McMillan Road This segment of McMillan Road abutting the site cannot be widened to 5-lanes because the Master Street Map constrains this road to 3-lanes. Per District Policy 7106.7.2 for Arterial Roadways Constrained by the Master Street Map, road segments built to the identified maximum lane configuration are not considered for widening. Consistent with District Policy, staff does not recommend that the applicant be required to widen McMillan Road abutting the site to 3-lanes due to the fact that: • McMillan Road between Black Cat Road and Ten Mile Road is listed in the CIP, as a funded improvement, to be widened to 3-lames between 2031 and 2035. • The applicant is required to construct a dedicated westbound left-turn lane on McMillan Road for the site access with this development, allowing this segment of McMillan Road to function as a 3-lane minor arterial, • McMillan Road east of the site has been widened to the 3-lanes, consistent with the MSM. Therefore, staff does not recommend any additional widening be required on McMillan Road with this development application beyond constructing the westbound left-turn lane at the site access on McMillan Road, as recommended in the study. c. Staff Comments/Recommendations: Staff comments are provided by District Traffic Services and Development Review staff. Based on the findings and recommendations in the TIS, a westbound left-turn lane is required to be constructed on McMillan Road when Grand Lake Way, the entrance to the site is constructed. 10 Baratza/ MPP24-0008/ H-2024-0016 E. Findings for Consideration 1. City of Meridian Pathways Master Plan The northern boundary of the site adjacent to McMillan Road is designated for a pathway in the City of Meridian's Pathways Master Plan. The pathway is specified to be a 10-foot wide concrete or asphalt pathway. The pathway is designed to accommodate two-way bicycle and pedestrian traffic. The applicant has proposed to construct a 10-foot wide concrete multi-use pathway on McMillan Road abutting the site. Staff is supportive of the applicant's proposal to construct a 10-foot wide concrete multi-use pathway on McMillan Road abutting the site. 2. MSM Roundabout— McMillan Road/ Black Cat Road Intersection a. ACHD Master Street Map: ACHD Policy Section 3111.1 requires the Master Street Map (MSM) guide the right-of-way acquisition, collector street requirements, roundabout requirements, and specific roadway features required through development. A new roundabout was identified on the MSM. The new multi-lane roundabout is planned at the McMillan Road/ Black Cat Road intersection that is offset to the north. b. Staff comments/Recommendation: This intersection is scheduled in the IFYWP to be improved as a multi-lane roundabout with 2-lanes on the east and west legs and 4-lanes on the north and south legs and was designed in 2024 and is scheduled for construction in 2028. The applicant should be required to dedicate additional right-of-way on McMillan Road and Black Cat Road to accommodate the future construction of the multi-lane roundabout as provided in the design plans located under attachments on page 23. In lieu of improving McMillan Road and Black Cat Road with pavement widening and a multi-use pathway within the extent of the future roundabout, as shown on the design plans under attachments on page 23, the applicant should be required to provide a road trust deposit in the amount of $54,900 and should be provided prior to ACHD's signature on the first final plat. 3. McMillan Road a. Existing Conditions: McMillan Road is improved with 2-travel lanes, 26 to 31-feet of pavement and no curb, gutter or sidewalk abutting the site. There is 50 to 114-feet of right-of-way for McMillan Road (40 to 41-feet from centerline). b. Applicant Proposal: The applicant is proposing to improve McMillan Road with 17-feet of pavement and a 3-foot gravel shoulder within the existing right-of-way abutting the site and a 12-foot wide gravel irrigation access road and a 10-foot wide multi-use pathway located outside of the right-of-way and is proposed to tie into the existing improvements east of the site. c. Staff Comments/Recommendations: The applicant's proposal meets District policy and should be approved and no improvements should be constructed within the extents of the roundabout as noted in Findings #2. Consistent with the findings and recommendations of the traffic impact study, staff recommends the construction of a dedicated westbound left-turn lane on McMillan Road when Grand Lake Way is constructed to intersect McMillan Road. The applicant should be required to dedicate additional right-of-way as necessary to accommodate the turn lane. Compensation will not be provided for additional right-of-way dedication or pavement widening. The dedication of additional right-of-way should not be required as part of this development due to the fact that there is already 40-feet of right-of-way from the centerline of McMillan Road abutting the site, which exceeds the Master Street Map requirement of 39-feet. Therefore, no additional right-of-way dedication is required for McMillan Road beyond right-of-way required for the turn lane. 11 Baratza/ MPP24-0008/ H-2024-0016 The applicant should be required to provide a permanent right-of-way easement for public sidewalks placed outside of the dedicated right-of-way. The easement shall encompass the entire area between the right-of-way line and 2-feet behind the back edge of the sidewalk. 4. Black Cat Road a. Existing Conditions: Black Cat Road is improved with 2 to 3-travel lanes, 25 to 40-feet of pavement, and no curb, gutter or sidewalk abutting the site. There is 51 to 66-feet of right-of- way for Black Cat Road (28-feet from centerline) b. Applicant's Proposal: The applicant is proposing to improve Black Cat Road with 17-feet of pavement from centerline, a 3-foot wide gravel shoulder, 5-foot wide detached concrete sidewalk located 38-feet from centerline and is proposing to dedicate additional right-of-way to total 50-feet from centerline of Black Cat Road abutting the site. c. Staff Comments/Recommendations: The applicant's proposals meet District policy and should be approved with the exception of the sidewalk location, and no improvements should be constructed within the extents of the roundabout as noted in Findings #2. The applicant should locate the sidewalk a minimum of 43-feet from centerline of Black Cat Road. Typically, the applicant should have the option to construct a 10-foot wide multi-use pathway on Black Cat Road abutting the site. However, to remain consistent with the existing 5-foot wide concrete sidewalk south of the site and on the west side of Black Cat Road across from the site, 5-foot wide detached concrete sidewalk should be constructed abutting the site, as proposed. The applicant should be required to provide a permanent right-of-way easement for public sidewalks placed outside of the dedicated right-of-way. The easement shall encompass the entire area between the right-of-way line and 2-feet behind the back edge of the sidewalk. 5. Permeable Pavers Internal to the Site Due to the high water table in this area, permeable pavers may be necessary internal to the site to accommodate high ground water. Permeable pavers are allowed, provided they are designed in accordance with ACHD Policy and Best Management Practices (BMP). Prior to the submittal of plans, the applicant should coordinate with Development Review staff regarding the analysis of the ground water monitoring report and use of the BMP. If permeable pavers are proposed internal to the site, the applicant should coordinate with Development Services on the construction of pedestrian crossings and crossings at intersections to determine if they are required to be concrete or paved, consistent with the current version of PROWAG. 6. Grand Lake Way-North/South Internal Collector a. Existing Conditions: Grand Lakes Way is not constructed within the site. Grand Lake Way stubs to the site's south property line. b. Applicant Proposal: The applicant is proposing to extend Grand Lake Way into the site and construct the roadway as a 26-foot wide collector street section with vertical curb and gutter within 30-feet of right-of-way and a 10-foot wide landscape strip and a 10-foot wide multi-use pathway located within a 22-foot wide permanent right-of-way easement. c. Staff Comments/Recommendations: The applicant's proposal meets District policy, should be approved as proposed. 7. Internal Local Streets a. Existing Conditions: There are no local streets within the site. Bartok Avenue stubs to the site's south property line and Viso Street stubs to the site's east property line. 12 Baratza/ MPP24-0008/ H-2024-0016 b. Applicant's Proposal: The applicant is proposing to extend Bartok Avenue and Viso Street into the site and construct all the internal streets with the exception of Grand Lake Way (See Findings #5), Quintale Street and the three roadways listed below as 33-foot wide local street sections with curb, gutter with a portion of an 8-foot wide landscape strip located within 47-feet of right-of-way and 5-foot wide detached concrete sidewalk located within a permanent right-of- way easement. The applicant is proposing to construct Quintale Street as a 33-foot wide local street section with vertical curb, gutter and a portion of an 8-foot wide landscape strip located within 47-feet of right-of-way and 8-foot wide detached concrete sidewalk located within a permanent right-of- way easement. The applicant is proposing to construct three internal streets, shown in pink, as 33-foot wide street sections with curb, gutter and an 8-foot wide landscape strip on both sides of the roadway and 8-foot wide detached concrete sidewalk on one side of the roadway and 5-foot wide detached concrete sidewalk on the other side of the roadway. • Bartock Avenue between Quintale Street and Street F • Street L between Quintale Street and Street F • Street F between Bartock Avenue and Street L MOMF 52 L10 B2 LL022L12 B2 L79 B2 L74 1p L1 : � FLt L9T L36 L95 L94 L39 L32ML31 L9B Leg L2R LZI L26 L25 L21 Leg L22 B9121:�l: j Bt L71RtL33 ea0P6 GaBB4F .- a1 s i1R9F::,�2 .� ,92s.9Yg B l LSF :II WGUIUALESY. .` ..- .... ..... ..... .. ....:.... . _ -.. .. I. d4a0.4 `'Il SSW B6 L48 05 L,6 B1 LT3 01 U4 i 40OF 15645E I 3X" F I I I . I : awa�FI I-.--- _ B` B 86 L84 BS L15 4ffi43 [fl- I 86 L35 IIS L44 7AOaSF _ -I I 4A6DO 45 o B5 L18C _ - BO - 86 L9R 66 L43 a 85Lx alws _ Mtw 4,W44F I I Bsu2 m,i•'sF BSLs ... t .. -- :; ,84 L1 95.08LSF .''� :� 55 L37 BBL42 ,4R54F -FOOT WIDE IB„L27 ,27.7 BS LB a 6.8614E 05 L11 l Be L38 RB lA1 I �60� SIDEWALK 'I f aawsF I�Lto IR,t LA .141 L24 - ! -� -111 1ms4T I $1pl L25 L8 I �. 61 f!I B11124FbW —__ 611 :k R]IM PR,SR A— R71M O-rIFG OitM e�le� e-llen I I'I .. I ....... III 114.31R 9, $FI Inn 14.946.5E 4.'411tg1 B71 l<22 :if{ The applicant is proposing to construct bulb-outs at the intersections of Quintale Street/ Street A, Quintale Street/Bartok Avenue, Street F/Bartok Avenue, Viso Street/Street L and Viso Street/Street N. The applicant is proposing to construct 5 cul-de-sacs at the terminus of the following roadways: • Street C • Street D • East and West end of Street H • Street N c. Staff Comments/Recommendations: The applicant's proposals exceed District policy for the roadways with 8-foot wide detached concrete sidewalk, as District policy requires 5-foot wide concrete sidewalk on local streets and should be approved. 13 Baratza/ MPP24-0008/ H-2024-0016 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 width to 2-feet behind the back of sidewalk and provide a permanent right-of-way easement that extends from the right-of-way line to 2-feet behind the back of sidewalk. Bulb-outs should be constructed to provide a minimum of 24-feet of pavement between the bulb-outs at the intersections, as measured from face of curb to face of curb. The applicant should be required to provide written fire department approval for use of the bulb-outs. The applicant's proposal to construct 5 cul-de-sacs within the site meets District policy. However, staff recommends Street C, Street D and Street H be constructed to intersect the proposed internal local streets to increase the connectivity within the site and reduce long maintenance costs associated with cul-de-sac turnarounds. The cul-de-sac turnarounds should be designed with a minimum turning radius of 50-feet. 8. Roadway Offsets a. Existing Conditions: There are no roadways within the site. b. Applicant's Proposal: The applicant is proposing to construct Grand Lake Way, a collector roadway, to intersect McMillan Road, a minor arterial roadway, located 2,323-feet east of Black Cat Road and in alignment with Joy Street on the north side of McMillan Road across from the site. The applicant is proposing to construct Quintale Street, a local street, to intersect Black Cat Road, a minor arterial roadway located 487-feet south of McMillan Road and in alignment with Quintale Street located on the west side of Black Cat Road across from the site. The applicant is proposing to construct two local streets to intersect Grand Lake Way, located as follows: • Viso Street, located 658-feet south of McMillan Road • Street O, located 1,200-feet south of McMillan Road c. Staff Comments/Recommendations: The applicant's proposals meet District policy and should be approved, as proposed. As noted above in Findings #7, staff recommends Street D to be constructed to intersect Street F and the applicant should be required to align Street D with Street G located on the south side of Street F, or provide a minimum offset of 125-feet from any other streets, consistent with District Local Offset policy. The applicant should be required to construct the internal local streets to align or offset by a minimum of 125-feet from any other street. 9. Driveways 9.1 McMillan Road a. Existing Conditions: There are 2 existing driveways from the site onto McMillan Road located 160-feet east and 860-feet west of Joy Street. b. Applicant's Proposal: The applicant is proposing to close the two existing driveways onto McMillan Road with landscaping, sidewalk and fencing. c. Staff Comments/Recommendations: The applicant's proposal meets District Policy and should be approved, as proposed. 8.2 Black Cat Road 14 Baratza/ MPP24-0008/ H-2024-0016 a. Existing Conditions: There are two existing unimproved driveways onto Black Cat Road located 487 and 855-feet south of McMillan Road. b. Applicant's Proposal: The applicant is proposing to close the two existing driveways onto Black Cat Road with landscaping, sidewalk and fencing. c. Staff Comments/Recommendations: The applicant's proposal meets District Policy and should be approved, as proposed. 8.3 Street A, Street L and Street O a. Existing Conditions: Street A, Street L and Street O are not constructed within the site. b. Applicant's Proposal: The applicant is proposing to construct five 27-foot wide shared driveways located as follows: • Onto Street A and in alignment with Street B • Onto Street A and in alignment with Street F • Onto Street L and in alignment with Street I • Onto Street L and in alignment with Street M • Onto Street O and in alignment with Street N c. Staff Comments/Recommendations: The applicant's proposal meets District policy and should be approved, as proposed. 9. Bridge for West Tap Sublateral Canal Crossings The District will require that the applicant have ACHD approved plans for the crossing of the West Tap Sublateral Canal Crossings 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. 10. Other Access McMillan Road and Black Cat Road are classified as minor arterial roadways, and Grand Lake Way is classified as a collector roadway. 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. 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 15 Baratza/ MPP24-0008/ H-2024-0016 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. McMillan Road and Black Cat 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 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 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. Street Section and Right-of Way Width Policy: District Policy 7205.2.1 & 7205.5.2 states that the standard 3-lane street section shall be 37-feet (back-of-curb to back-of-curb). This width typically accommodates a single travel lane in each direction, and a continuous center left-turn lane, and curbs and gutters. A 3-Iane road shall also include a minimum 10-foot wide multi-use path on both sides with at 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 53-feet to allow for a 5-foot wide bike lane and 3-foot wide painted buffer. Landscaped medians with intermittent turn lanes may be allowed when a minimum of 20-feet of pavement on both sides of the median is provided. If a landscaped median is included in any of these cross sections, the landscaping shall be maintained by license agreement with the adjacent HOA, property owner, or by interagency agreement with the corresponding land use jurisdiction. 16 Baratza/ MPP24-0008/ H-2024-0016 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 pathway and buffers. 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. 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). 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 McMillan Road is designated in the MSM as a Residential Arterial with 3-lanes and on-street bike lanes, a 46-foot street section within 78-feet of right-of-way. 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 Black Cat Road is designated in the MSM as a 17 Baratza/ MPP24-0008/ H-2024-0016 Residential Arterial with 5-lanes and on-street bike lanes, a 72-foot street section within 100-feet of right-of-way. 5. Grand Lake Way 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. 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.). 18 Baratza/ MPP24-0008/ H-2024-0016 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 a Residential Collector. The new collector roadway should continue from the south through the property and intersect McMillan Road. The Residential Collector typology as depicted in the Livable Street Design Guide recommends a 2-lane roadway with bike lanes, and on street parking, a 36-foot street section within 50 to 70-feet of right-of-way. 6. Internal Local Streets Local Roadway Policy: District Policy 7207.2.1 states that the developer is responsible for improving all local street frontages adjacent to the site regardless of whether or not access is taken to all of the adjacent streets. Street Section and Right-of-Way Policy: District Policy 7207.5 states that right-of-way widths for all local streets shall generally not be less than 47-feet wide and that the standard street section shall be 33-feet (back-of-curb to back-of-curb). Standard Urban Local Street-33-foot Street Section and Right-of-way Policy: District Policy 7207.5.2 states that the standard street section shall be 33-feet (back-of-curb to back-of-curb) for developments with any buildable lot that is less than 1 acre in size. This street section shall include curb, gutter, and minimum 5-foot wide concrete sidewalks on both sides and shall typically be constructed within 47-feet of right-of-way. For the City of Kuna and City of Star: Unless otherwise approved by Kuna or Star, the standard street section shall be 36-feet (back-of-curb to back-of-curb) for developments with any buildable lot that is less than 1 acre in size. This street section shall include curb, gutter, and minimum 5-foot wide concrete sidewalks on both sides and shall typically be constructed within 50-feet of right-of- way. Continuation of Streets Policy: District Policy 7207.2.4 states that an existing street, or a street in an approved preliminary plat, which ends at a boundary of a proposed development shall be extended in that development. The extension shall include provisions for continuation of storm drainage facilities. Benefits of connectivity include but are not limited to the following: • Reduces vehicle miles traveled. • Increases pedestrian and bicycle connectivity. • Increases access for emergency services. • Reduces need for additional access points to the arterial street system. • Promotes the efficient delivery of services including trash, mail and deliveries. • Promotes appropriate intra-neighborhood traffic circulation to schools, parks, neighborhood commercial centers, transit stops, etc. • Promotes orderly development. 19 Baratza/ MPP24-0008/ H-2024-0016 Sidewalk Policy: District Policy 7207.5.7 states that five-foot wide concrete sidewalk is required on both sides of all local street, except those in rural developments with net densities of one dwelling unit per 1.0 acre or less, or in hillside conditions where there is no direct lot frontage, in which case a sidewalk shall be constructed along one side of the street. Some local jurisdictions may require wider sidewalks. The sidewalk may be placed next to the back-of-curb. Where feasible, a parkway strip at least 8- feet wide between the back-of-curb and the street edge of the sidewalk is recommended to provide increased safety and protection of pedestrians and to allow for the planting of trees in accordance with the District's Tree Planting Policy. If no trees are to be planted in the parkway strip, the applicant may submit a request to the District, with justification, to reduce the width of the parkway strip. Detached sidewalks are encouraged and should be parallel to the adjacent roadway. Meandering sidewalks are discouraged. A permanent right-of-way easement shall be provided if public sidewalks are placed outside of the dedicated right-of-way. The easement shall encompass the entire area between the right-of-way line and 2-feet behind the back edge of the sidewalk. Sidewalks shall either be located wholly within the public right-of-way or wholly within an easement. Cul-de-sac Streets Policy: District policy 7207.5.8 requires cul-de-sacs to be constructed to provide a minimum turning radius of 50-feet; in rural areas or for temporary cul-de-sacs the emergency service providers may require a greater radius. Landscape and parking islands may be constructed in turnarounds if a minimum 29-foot street section is constructed around the island. The pavement width shall be sufficient to allow the turning around of a standard AASHTO SU design vehicle without backing. The developer shall provide written approval from the appropriate fire department for this design element. The District will consider alternatives to the standard cul-de-sac turnaround on a case-by-case basis. This will be based on turning area, drainage, maintenance considerations and the written approval of the agency providing emergency fire service for the area where the development is located. Landscape Medians Policy: District policy 7207.5.16 states that landscape medians are permissible where adequate pavement width is provided on each side of the median to accommodate the travel lanes and where the following is provided: • The median is platted as right-of-way owned by ACHD. • The width of an island near an intersection is 12-feet maximum for a minimum distance of 150-feet. Beyond the 150-feet, the island may increase to a maximum width of 30-feet. • At an intersection that is signalized or is to be signalized in the future, the median width shall be reduced to accommodate the necessary turn lane storage and tapers. • The Developer or Homeowners Association shall apply for a license agreement if landscaping is to be placed within these medians. • The license agreement shall contain the District's requirements of the developer including, but not limited to, a"hold harmless" clause; requirements for maintenance by the developer; liability insurance requirements; and restrictions. • Vertical curbs are required around the perimeter of any raised median. Gutters shall slope away from the curb to prevent ponding. 20 Baratza/ MPP24-0008/ H-2024-0016 7. Roadway Offsets Local Street Intersection Spacing on Minor Arterials: District policy 7205.4.3 states that new local streets should not typically intersect arterials. Local streets should typically intersect collectors. If it is necessary, as determined by ACHD, for a local street to intersect an arterial, the minimum allowable offset shall be 660-feet as measured from all other existing roadways as identified in Table la (7205.4.6). 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 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). 8. Driveways 8.1 McMillan Road and Black Cat 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. Successive Driveways: District policy 7205.4.6 Table la, 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. 21 Baratza/ MPP24-0008/ H-2024-0016 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.9 8.2 Street A, Street L and Street O Driveway Location Policy: District policy 7207.4.1 requires driveways near intersections to be located a minimum of 75-feet (measured centerline-to-centerline) from the nearest local street intersection, and 150-feet from the nearest collector or arterial street intersection. Successive Driveways: District Policy 7207.4.1 states that successive driveways away from an intersection shall have no minimum spacing requirements for access points along a local street, but the District does encourage shared access points where appropriate. Driveway Width Policy: District policy 7207.4.3 states that where vertical curbs are required, residential driveways shall be restricted to a maximum width of 20-feet and may be constructed as curb-cut type driveways. Driveway Paving Policy: Graveled driveways abutting public streets create maintenance problems due to gravel being tracked onto the roadway. In accordance with District policy, 7207.4.3, the applicant should be required to pave the driveway its full width and at least 30-feet into the site beyond the edge of pavement of the roadway. 9. 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. 10. 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. 11. Pathway Crossings: United States Access Board R304.5.1.2 Shared Use Paths. In shared use paths, the width of curb ramps runs and blended transitions shall be equal to the width of the shared use path. AASHTO's Guidelines for the Development of Bicycle Facilities 5.3.5 Other Intersection Treatments: The opening of a shared use path at the roadway should be at least the same width as the shared use path itself. If a curb ramp is provided, the ramp should be the full width of the path, not including any flared sides if utilized. . . . Detectable warnings should be placed across the full width of the ramp. FHWA's "Designing Sidewalks and Trails for Access" (1999) reflected common ADA-related concepts: Chapter 6, Page 16-6: The width of the ramp should be at least as wide as the average width of the trail to improve safety for users who will be traveling at various speeds. In addition, the 22 Baratza/ MPP24-0008/ H-2024-0016 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. G. Attachments 23 Baratza/ MPP24-0008/ H-2024-0016 M T4N R1W Sect 33 NOTES +02.70 R6206190030 +52.71 Q 76.7 Lt. 50433110460 77.0 Lt OAKS HOA INC O1 Removal of Obstructions, Item 201.4.1.C.1 +53.07 _ TERRY MOORE 48 O3 61.7 Lt. +68.50 Pig - Pir I I I 61.7 L+ 2 Gravel Repair, Item SP02020 R7340320460 +80.89 4535 02 58 g�t 2 N OAKSTONE AVENUE 9 +68.54 O 59.5 Lt. I 49.9 Lt. O4 Stormwater Structure Core Drilling,RAPID CREEK HOMEOWNERS ASSOCIATION E c- F-- - __ -- V r W 45 18 10 +53.22 45 g, 12, Item 0602.4.1.D.1 4 Ease T N BLACK CAT ROAD 52 • 0 ��-- _ 9 + 6 OS 49,9 Concrete Collar, Item SP XXXXX +9225 23 10' E--- E 4 _ -- -.�j 43 42 5.7 Lt.• �.,• N BLACK CAT ROAD 48.4 Lt - E----E----E----E---- A-y-•-•- 2' Irr. Pipe, Class V RCP, Item 601.4.1.A.1 --- ---E-- E---- 54 >=.�. 1 1•., �� ... - - " --- ,g�N.-�.:..r....:+m.++�R'.-.fir-r:...-•-rl.7rsss _ai Fr �•y 1 15' 8.5' 1 46 0 Irr. Pipe, lass V R Item 601.4.1.A.1 1 46 O 6 Pie C RCP, 1 12' 46 46 46 21 24 + 38 54�. 46 4 O9 12" Irr. Pipe, Class ASTM D 3034 PVC, Item 601.4.1.A.5 11 1 46 +20.7, 35 9 Lt. -- F- F- _ 46 _ _ _ --_._. - -_ _ �- 68 d3 d� d} 63 d3 5' 60 ® 'r 40 4' 10 15" Irr. Pipe, Class ASTM D 3034 PVC, Item 601.4.1.A.5 S I - +90.4, 16.6'L -- d3 1 _ -. - - - 0 18 Precast Concrete Irrigation Structure - Size 5'x5', Item + d3 d3 d3 ��-PRESCR/PTl✓E ROW�� ��T 24 PRES PP OW �--(J) 'T! 1 ++ 602.4.1•N•1 ������������������������� ����� ����.��� ,� �� 46 N 20 Standard 8"Vertical Curb and Gutter, Item 708.4.1.A.3 7+00 21 Curb Terminus, Item 706.4.1.A.5 - - -�-�-�� T 5\+00\ 41 02' 52"W 6+00 L� 23 Concrete Sidewalk, Thickness 5", Item 706.4.1.E.1.5 00 ' _ - � - - - o - - - - --- - - - - - - - 29475'. 8+00 BLACK CAT R� O -- 24 Concrete Driveway Approach, Item 706.4.1.F.1 d3 d3 d3 - d3 d3 d� d3 d3 d3 d3 - - - N anhole - Adjust to Grade, Item 2030.4.1.A.1 " 37 Rt- M Ad'us de ............. ........ ...........7-- �••................................................................. ..........d3 21 40 1 rn 6' 20 38 Remove and Reuse Irrigation Screw Gate, Item SP 6026 _ _-- - - _ ••••• PAts 40 Patterned Concrete, Item SP 7013 1p 70 41 Remove and Reset Weir Box, Item SP 20010 _- b9 Block Retaining Wall, Item 1005.4.1.H.1B +06.32 Ease (P) 43 Ornamental Rock, Item SSP 25002 +88.83 SO434223150 46.0 Rt. +04.72 +04.71 46.1 Rt. 23 10 45 Sod Repair, Item SSP 29064 ---- - - - _ 48.1 Rt. 46.1 Rt. BLACK CAT-MERIDIAN 77 LLC --_ S043342129571 0 23 46 Removal of Tree (6"+), Item SP 29093 BLACK CAT-MERIDIAN 77 LLC W MCMILLAN ROAD E 48 Grade Canal Slopes, Item SP 70021 24 s W MCMILLAN ROAD -- -- _ 52 Cast-In-Place Headwall, See Sheet 54 54 Pedestrian Rail, Item SSP 20109 T4N R1 W Sect 34 59 Traffic Control Barricades, Type II, Item 1103.4.1.C.B 3+00 4+00 5+00 6+00 7+00 8+00 69 Asphalt Repair - other, Item SSP 08125 68 Borrow Ditch, Incidental to Grading SC E: 1"=20' IIORIZ. 70 Tactile Walking Surface Indicators, Item SP 07018 PVI 3to 3d 66.23 1 =2 V RT. 150. 0' Me tical urve STA 6+89. 2 RT PC 2546 ev. P I Sto 5+89. 1 TBV =254 .00 2546 ev fight C K=1 3.85 ^o STA 6+90 22 RT PC Right -OR TBV =254 .02 2544 0.00' ertic Gury o aM New TBC L. 254 RIGHT OF WAY PLANS PVI to 3+ 4.98 r, inw NOT FOR CONSTRUCTION PVI Iev.25 0.38 ++ �w Left09B 1 a RIGHT OF WAY LEGEND �O of N L Existing Croce At a N o. + .22 2542 1 0 +0 Black Cat C �o on E P Ele. 254 .51T +� a" 2542 M + o fset 39' t. PRESCRIPTIVE N oN d +N -OIL o Q_ °'o Fo 0.65%RT oN 2540 0.52 LT m > EO SE ev 254 51T 2540 ACQUISITIONS +o se 0.0 % LT AP sta. +08.6 oN 6 " RC Irr. TEMPORARY EASEMENTS N a 2538 of set 2 .15' L. 0 2538 0. 8% LT a PERMANENT EASEMENTS 150. 0' Ve tical urve a + _ _ -- 2536 P I Elev2541. 0 2536 K=7 .22 L ST . 7+ 4.421 Benchmarks to be provided at 99% Plans Existi g Irrigation Box 8 Rt. 2534 6 " FL lev. 536.E (N) 2534 �S A. 3+ 6.07 FG im EI v. 25 4.87 0 20 60 2532 Plan Scale 1 FL lev. 535.8 (E) 2532 1 " FL Elev. 535.8 (w) IFT m ev. 2530E 2530 Revisions: Design By:MSN Date: 4pnil 22M Drawn By:APAN and CSC Date: mil M24 Survey By:I Survey Cons. Date: der12024 Ada County Highway District 3775 Adams Steet, Garden chdidaho.l Idaho, 83714 org Project Number: 321010 Project Name: McMillan Rd. & Black Cat Rd. RAB Sheet RX Of R13 T4N R1W Sect 33 NOTES + 5.p7 +12.38 +54.73 +72.76 O1 Removal of Obstructions, Item 201.4.1.C.1 +88.72 74.5 Lt, Lt. 75.7 Lt 75.8 Lt. 75.4 Lt. - 12 12" PVC - C900 Item 601 4 1 A 5 12A Io'P Zv EASE•ucNT 27 N 27 - - -57 04 - R6206170310 F" - - R6206170360 (vurrca) j•/.��j e P ,i y + - - �n+eNr- - P -- 13 18" PVC - C905, Item 601.4.1.A.5.18A SFIOT-INC �n 10, W 10� ,42 43 48.7 Lt _ OAKS HOA INC (aunEo) 42 �43 54 P 42 43---- 45 +14.81 - `.r`�/ ° J 9 49 5 14 48" Dia. Storm Drain Catch Manhole, Item 0602.4.1.E.1 i� __50.6 Lt. 'n% +47.89 �� 46 45 49 45 _ ` ` n. - N BLACK CAT ROAD ---- BC40�CAT ROAD !�• r,�i 45_ - '65.9 Lt. ��;� � - 15 Catch Basin, Type 1, Item 602.4.1.F.1 'r 45 Z 49 r�R/wy = RjW1 -z-''r'R,(w 20 Standard 6"Vertical Curb and Gutter, Item 706.4.1.A.3 `�- Tin• ".n - n. �•n 1 . _ 1 ` `. - 10' - - - ---40 4' --- A�"Alh` ` R !�= - `.� r0 --- �MENI `�,`.��• -� 23 10' - -- -- - - _ 23 Concrete Sidewalk, Thickness 5", Item 706.4.1.E.1.5 o `. •iN}'. 23 10 aros 15 5 __ G - _ --- __ + .� ," . - ", ,,,, - Pao g`Lh - - --- ----- ----- - - Concrete Driveway Approach, Item 706.4.1.F.1 0 24 20 45 27 10� 27 1 45 ----- - - 2p r 27 Red. Ramp w/ Detectable Warning Dome, Type A, Item __ ._. _ - - - 2 --.... - - - 40 A -1, -_ - + T - _ -23' 1 - --- - ------ ----- --------- - -, - Manhole to Grade, Item 2030.4.1.A.1 c 0 `n - - _��-_ 4,-.. 37 M de, 74.27 0 37 BLACK CAT RD 29.8 Lt. 37 m +81 `� FO 14 -_-_ 40 Patterned Concrete, Item SSP 7013 29.5 Lt. ` lock Retaining Item 1005.4.1.H.1 0 NO' 12' 43"E 9+00 sew 90+00 - 11+00 sew B 354.21' /-~ NO' 28 21"E T 12 i 00 _ 13 192 13 0 'ninq Wall I _ 26 `�'` = - - - „+: 43 Ornamental Rock, Item SP 25002 8+00 44 44 - - _ � 12 46' 13+00 a 44 Valve Box, Type Water, Adjust to Grade, Item 2030.4.1.C.1 'c'�A Sod Repair, Item SSP 29084 27 10' g A A�AFl\��\�EFyv77 \F --�A��\ Efv �\.e� 20 40 ' 27 10' V�a�A� -A 15 �A AAAAAAAAAAAAAAAAv�VAAAAAAAAAIVAA 46 Removal of Tree (6"+), Item SSP 29093 IAn�EAOs�v v v v v v v v v v v__-- -- v °•°•° °,.m m„ a 49 Retain and Protect 54 Pedestrian Rail, Item SSP 20109 • .z•• •• Irt:*� . Ts,. ter* P 23 10' Ease (P) 50434223150 BLACK CAT-MERIDIAN 77 L17C 23 F W MCMILLAN ROAD -- --- -- ------ ------ IRRIGATION EASEMENT -- --- ---HdSF N�2B?2-OB416� N R1 W Sect 34 8+00 9+00 10+00 11+00 12+00 13+00 00.00' Verti al Cu ve 2546 ST 10+ 2.42 T PC SCALE: 1"=2 HORIZ. PVI Elev.2 42.48 T VC=2 43.59 1 =2° VERT. K=69. 4 2546 Existin Gra e At lack at CL c� 03.25 Verti al Cu ve °� P St. 11+66 01 0°'. N RIGHT OF WAY PLANS STA 10+47. 0 RT PC + K=69 61 w 2544 ,o% r TBVG 2543. p N PV Sta. 1+14. 8 a" 254 NOT FOR CONSTRUCTION U j PVT Sta. 2+17. 3 5� 7.7 q LT >~ TB ' - - RIGHT OF WAY LEGEND 0.999 LT 2542 0.31% RT New rec t. 2542 _ STA. 1+6417 PRESCRIPTIVE SD C tch M H 1 Lt. 12" Elev 253910 (S ) 2540 SD Catch q€v 53s. 08(NE 18" Elev 2536 10 O 2540 ACQUISITIONS 6 1 s D =0 40% TEMPORARY EASEMENTS 2538 12" PVC D __ =0.4 % - 2538 - srA 11+ a.n PERMANENT EASEMENTS N 12s t M\H 16' Lt. -- - - -- I�g$ + 0.07 S &. FL EI v. 2s 9.10 E) 2536 m 12 9 Rt. 1a" FL EI v. 2s s.10 N) 2536 Benchmarks to be provided at 99% Plans N ST. 1 1+ 0.07 12" C S 2534 12" FL Elev. 539.2 (W) s=o' 9% 2534 0 20 40 60 2532 2532 Ian tale 2530 2530 Revisions: Design By: B&N Date: April 2024 Drawn By: B&N and CSC Date: April 2024 Survey By: CSC Date: 2021 ,.U_ Ada County Highway District 3775 Adams Strveet, ardenhCity, Idaho, 83714 Project Number: 321010 Project Name: McMillan Rd. & Black Cat Rd. RAB Sheet RX Of R13 T4N R1 W Sect 33 40 T4N R1 W Sect 28 39 NOTES ••® t'/ I r ®T +54.63 +06.96 0 23 10' I 688 48Lt. 75.9 Lt. 7+21 5.4 L 59.7 L O Removal of Obstructions, Item 201.4.1.C.1 GMAS H ZU 83.48 ]5.4 Lt. 59.7 Lt. 7.5 R 70.]Lt. Ease (T) 6].5 R O6 4850 18 O7 48" Irr. Pipe, Class V RCP, Item 601.4.1.A.01.48C IE N BLACK CAT OAD •• ,p q ' / 1 +28.30 +t9.zs 13 +67.65 ...••' �i S �yI €• ss.3 u. so.s Lt. O 18" Irr./SD Pipe, Class C905 PVC, Item 601.4.1.05.18A "• t•2••: •• •• ' -• 1 O I ' \ 47.8 Lt. 448 Lt. +88.35 +19.49 62.73 1 2 12" SD Pipe, COSS C900 PVC, Item 601.4.1.A.5.12A 47.8 Ll. 46.5 Lt. +06.73 53.5 Lt. +88.81 fia.a +6a.9s 44.0 6 12" Irr. Pipe, Class V RCP, Item 601.4.1.A.1 13 83' � Ease (P) as.o Li. O P ... 22 Begin �,� i;; FO •• '••"•• O 60" Irr. Pipe, Class V RCP, Item 601.4.1.A.1 20 g 26 10' T I �• - •235 10'_ End FO 40 4° ' _ / +tsza 26 10' 40 6 15 Catch Basin, Type I, Item 602.4.1.F.1.A 1 14 ">� 93. 46 rh 51.8 Lt. 2r T T 93.9 Rt. 9 18 Precast Concrete Irrigation Structure - Size 5'x5', Item o "_ _ Tv T 40 Eo a a ^°:... 602.4a.N.1 + - ' _ _ _ _Paesce�anue Row -- 1 G - - End_ 20 Begin + 20 Standard 6" Vertical Curb and Gutter, Item 706.4.1.A.3 T 13 192' T T _s:atvn e Raw ro 13+00 EP EP E T T s T 22 g1 22 Curb & Gutter - Type Roundabout, Item 706.4.1.A.7 rn 56 39 37 W $� EP 40 39 >= 14 422' 12 T 40 v' 23 v - -�'4T0� °°°°°° c 11 155 O Concrete Sidewalk, Thickness 5", Item 706.4.1.E.1.5 � - . sew sew sew 3T 12 se "" 2 Red. Ramp w/ Detectable Warning Domes, Type G, 39 v�v v W _ 15 0o _ - s Item 706.4.1.H.1.G.G $�Lk► K�K 39 = 27 Red. Ramp w/ Detectable Warning Domes, Type A, g 42 1 18+00 Item 706.4.1.H.1.A.A 22 Begins v v v v v v v v v v v v v v v++5`30v E!Z EP\ v �v r w 56 / Manhole - Adjust to Grade, Item 2030.4.1.A.1 W 44 O Mountable Roundabout Curb no Gutter Size 4-Inch, vAvAvvv v AvAv A�A�Av vA �A End 22 20 ( ), End ,10• #� / EP EP EP E 14 EP EP EP Begin 39 Item 706.4.1.A.9.A 27 \\\\\\ \\ \\ \ / E EP p ,�, P R�S�Flanu�R w ••• �y v v v v 7 258' \ 40 2 86' Patterned Concrete, Item SSP 7013 9 0 .Tv _ Tv Tv 40 a/ + A I ` m ` 42 Block Retaining Wall, Item 1005.4.1.H.1 � P r�/m m 10 • A T SoQoi3u I 27 10' 23 '�o �+ +sas0 .S+ 44 Valve Box, Type Water Adjust to Grade, Item 2030.4.1.C.1 23 42.3 Rt. "+` aia et. _" SO434223150 / T © �� / I ° „' - 45 Sod Repair, Item SSP 29064 BLACK CAT-MERIDIAN 77 LLC A 00 - 46 +17t9 / 0 \ -°I' �` ��!T�r/� Removal of Tree (6"+), Item SSP 29093 23 53.4 Rt y 0 o r . :` . .. . . . \/ I +azR R1729130300 51 Lim&9saf(%ncrete Paving W MC TITAN ROAD F s \ 40 "��-�" - "•�,. 58.2 t. -- +32oJ ��, 40- 45 2t CLAYTON PROP4ER6 52 TIIES GROUP INC Cast-In-Place Headwall, See Sheet 53 63.3 R<. .$o - a 7 Ec Ec Ec = I \ �. 0 - W RIVA CAPRI CT 56 Detectable Warning Devices - Retrofit, Item SSP 07015 EG EG- -- J. ���J 1 2 HH T4N R1 W Sect 34 s T4N R1 W Sect 27 3+00 =+ 15+00 16+00 17+00 18+00 Refer to Foundabout Curb Plan an Profile She is 10-18 SCALE: 1" 20' HORIZ. a c M\H 1 2' VERT. 2546 12" L Elev 253 .92 O Finis Grou d At 2546 Lie. zoxac a Ne m TBC Rt. STA. 59+2 21 12 FL El-v. 2 37.86 (E) RIGHT OF WAY PLANS ,z IL EI 52 7.86 w iEx . ,6+10.67 NOT FOR CONSTRUCTION 2544 12" FL Elev. 25 7.86 SE) Exi ting rigati n Box 91 254 SD C otch \H 2 Lt. FG Rim I lev. 2 45.8 ,6 L e. 253 RIGHT OF WAY LEGEND e. New BC Lt 2542 STA. 16+1 .61 2542 rrig tian-flaI PRESCRIPTIVE 18' FL Elev. 2527.52 E) New TBC t. FG im Elev. 25 1.91 onne t to Existing Irriga ion B x 72' Rt. Exis ing G ound t Bla k Cat CL ACQUISITIONS 2540 60' FL E ev. 2 39.32 (E) 2540 ev. 18' PVC Irr. 18 PVC D FG Ri Elev 254 .08 s=2. 2% TEMPORARY EASEMENTS 2538 1 " E 2538 PERMANENT EASEMENTS 12" PVC E D -0.6 y D =3.81 PVC SO 2536 18 PVC SD Se Headwall Basin Sheet S ,.61 2536 STA 14+ 3.99 IT PVC SO 48' FL Elev. 2536.72 (NW) 4 ' RCP Irr. 2534 She she t 27 S=D 9% 2534 0 20 40 60 +'STA. 15+ 1.05 SID2532 SD Catch M\H 143' t. 12 ' \H 10' 2532 Plan Scale 12" L Ele. 253 .31 fl ev.46 12" L Ele. 2 FIL 53 .31 ( ) 48 FL E ev. 2,135.11 (N) 2530 2530 Revisions: Design By: B&N Date: April 2024 Drawn By: B&N and CSC Date: April 2024 Survey By: CSC Date: 2021 ,. Ada County Highway District 3775 Adams Street, Garden chdidaho.lorgldaho, 83714 Project Number: 321010 Project Name: McMillan Rd. & Black Cat Rd. RAB Sheet RX Of R13 T4N R1 W Sect 28 8 W a T4N R1 W Sect 27 NOTES F � . 39+0696 ° T '13 92,' `,•'•° 1 23 10' __ _ 1�Removal of Obstructions, Item 201.4.1.C.1 75.9 Lt : +15.24 ' +83.48 • / 4 L 51 8 Lt 56 155 , a�Ng > 4`5 45 +71 R1729130300ROUP INC �� �3 Stormwater Structure Core Drilling, Size 48", Item 70]Lt. PROPERTIES G N 0602.4.1.D.1 +54.63 / n j s j x +7 21 G `�1,...._\ +38.71 6a.a Lt. 40 14 '> ', 68'L. - YTON 4 0 P e 587 Lt. 15, \ •'• 1 O 48" Irr. Pipe, Class V RCP, Item 0601.4.1.A.01.48C 12 F,os 3� +70.69 o W RIVA A RI CT ��$ P 27 10' • •......^ O 60" Irr. Pipe, Class V RCP, Item 0601.4.1.A.01.60C SO428449815 -�� 12 75 ' , 18" Irr. Pipe, Class C905 PVC, Item 0601.4.1.A.05.18A OPEN DOOR RENTALS LLC +56.07 +53.38 1 4.5 Lt `�� 12 12" SD Pipe, Class C900 PVC, Item 0601.4.1.A.5.12A a1.1 u. 18" SD Pipe, Class C905 PVC, Item 0601.4.1.A.5.18A W MCMILLAN ROAD 22 53.41 �. \ +sa.az 3a.1 Ln Ease (P) ,.• �� 19sA Lt � 1 '�''' {' o , ........ � _ - - - 0 14 48" Dia. Storm Drain Catch Manhole, Item 0602.4.1.E.1 _ 22j Ww 23 10 -W'f1' 40 \�� I 40 - 15 Catch Basin, Type 1, Item 602.4.1.F.1A 15 -- F _ 6' 10' - 1 � /�\F�� FO __--- --_-_____ _ T P __ _ d 17 Concrete Irrigation Box - Size 9'x9' OD, Item \__/ �� 258' V�'/ 56 T� FO 51 0602.4.1.M.1 27 0��� :°. 18 Precast Concrete Irrigation Structure - Size 5'x5', Item 1956 Lc P T 7 39 \ c/ W W - - - 602.4.1.N.1 2 45'I J 40 • 56 40 _ _ 14 39 12 118' u 21 Curb Terminus, Item 706.4.1.A.5 57+ 0 58+0 W S88° 07' 20;'E W 40 87° 21' 5 'E.•.. --+--- �- 59+0 g 22 Curb & Gutter - Type Roundabout, Item 0706.4.1.A.7 0.43' 60 12 40 231.62' 37 \ - 23 Concrete Sidewalk, Thickness 5", Item 706.4.1.E.1.5 36' 40 27 39 40 T 56 10' 39 -� v �F MCMILLAN RD 15 63 27 Red. Ramp w/ Detectable Warning Domes, Type A, Item T 10' 22 1 \ $I 64 1p' 15 22 �o- 0706.4.1.H.1.G.G a... i FO e 27 - - - �- � - - 37 Manhole - Adjust to Grade, Item 2030.4.1.A.1 _ _ SCRIPrII/£ROW 15 14 23 10, T - '�� - � 23 10' - �- "' :� •+8•• 39 Mountable Roundabout Curb (No Gutter), Item 0706.4.1.A.9.0 +.1 R1 -� 40 Patterned Concrete, Item SSP 7013 21 6 a Rt. 1 2 36.1 Rl. +80.25 `36.4 Rt. 7' - 1 42 Block RetainingWall, Item SSP 20110 r/+1�� ,SDA33�i007®••••.,• 40 ' I--- - A _ ••%' �0--� 1 7 O 8 97' +05 13 +90-88 12 57' °�T(F�OMAS 1i ZLLM�JALT��\• ��-O �yl 211 s Rt J T- 45 Sod Repair, Item SSP 29064 ....................... 40 i// �c/-�- `� 46 39 40 // -_ / E--E- 42.3 Rt 3801 Rt. +80.35 / / // \ ;\\;• 40 1 --F- --F--- 53 46 Removal of Tree (6"+), Item SSP 29093 N BLA�r eT_OAD \ �� / \ / SO43422 150 o1 51 Limits of Concrete Paving \ j +s31�ase �ss1 Rt LF$CK CAT-MERIDIAN 77 LLC +ss.o9 ••ba 7•R1. •• •••• •• •••• ... ---- - 53 Cast-In-Place Headwall, See Sheet 53 & 54 +so as Rl- 65 z8et. Ease (T) •••• •• 2� W MCMILLA ROAD+ss.za 55 Wetland Basin, See Basin Sheets T4N R1 W Sect 33 T4N R1 W Sect 34 5s Detectable Warning Devices - Retrofit, Item SP 07015 63 55+00 56+00 57+00 58+00 59+00 60+00 Borrow Ditch, Incidental to Grading STA. 55+11.63 inish Ground At McMillan CL Refer to oundabout Curb Plan an Profile She is 10-18 12" FL Elev. 25 8.50 SE) 2546 2546 ST. 55 12.56 STA 59+5 .59 L Inl t 16' Lt. Existi g Grolind At McMil an 60" CP I TBV -254 .86 19, . S=0.449 RIGHT OF WAY PLANS 2544 - - 2541 NOT FOR CONSTRUCTION Fnish round At Mc illan L I 1 PV Pipe Irr. 3.82 RIGHT OF WAY LEGEND 2542 1 STA. 57+7 .73 2 5 42 etlet s3 Lt. . . PRESCRIPTIVE 12 12" F Elev. 253825 N ' FL Elev. 2 36.92 (N) STA 59+5 .52 R 12" F Elev. 2538 25 S 12 FL lev. 2 36.92 (E) IA TA. 5 +26. 2 RCP EOP 2544 60 60 Irr. is in rng .an ax STA. 59+5 .85 ACQUISITIONS 12" F xi Elev. 2538 25 (N ) x F Elev. 2536. 2 (N ) 2540 2540 12 PVC D G Ri Elev. 254355 Inlet 17' Ft. 12" FL Elev. 25 9.70 0$1° TEMPORARY EASEMENTS PVC SD 2538 =-O D% 2538 PERMANENT EASEMENTS 2" SD S=O. 9% S= 601,. 2536 2536 1 SD -ING STA. 5+90 53 12 PVC ipe I r. S A. 5 14.94 =3.81 Benchmarks to be provided at 99% Plans F=253 .39 48" L Ele. 253 .94 ( E) STA. 8+02. 7 2534 48" FL EI v. 25 5.11 N) Irrigati n Box 54' Rt. STA. 9+27. 1 2534 60" FL EI v. 2529.11 S) 12" FL El . 2517.86 E) G Rim Elev. 2547.)8 12" L Ele. 253 .86 ( ) 0 20 40 60 1 lev 2532 I 2532 Plan Scale Irriga ion B x 31' Rt. 48" L Ele. 253 .97 ( ) 2530 FG Rm Ele. 25 .52 257; Revisions: Design By: B&N Date: April 2024 Drawn By: B&N and CSC Date: April 2024 Survey By: CSC Date: 2021 ,.W_ Ada County Highway District 3775 Adams Strveet, ardenhCity, Idaho, 83714 Project Number: 321010 Project Name: McMillan Rd. & Black Cat Rd. RAB Sheet R12 Of R13 hT4N R1W Sect 27 NOTES LL o 12 12" SD Pipe, Class C900 PVC, Item 0601.4.1.A.05.12A 14 48" Dia. Storm Drain Catch Manhole, Item 0602.4.1.E.1 (P EASEMEN➢C' T UTrco) t 21 Curb Terminus Item 706.4.1.A.5 R1729130300 22 Curb & Gutter - Type Roundabout, Item 706.4.1.A.7 CLAYTON PROPERTIES GROUP INC BLlNKET PUoi EASEMENT 21 4760 (P.'TED� 45 Sod Repair, Item SSP 29065 Sawcut Incidental to Project 22,•'• •• 21 - �-_ W RIVA CAPRI CT- - T '•.., _ O ••• - ' PUDI EASSMENT _ � - - (PUTTEO) p —••• - - _ d3 a 12 11' ��•d3• R N 12 1 18' E - 14 _ St, 61+36.7. - - - - 00 sag 50' 36"E _61+0 sz+oo MCMILLAN RD _ _ _ 64i00 - 65RS89° 4 18458' _ 363.37' 0+ — 50 - - - - - - EP d3E� r� r: h_ - - _._ _ _E_ EP EP .1 EP EP EP EP -_d3 •••••••••••••••••••••••••••••••••••• SECT/ON L/NE AS PATTED/N BLACK CAT ESTATES NO 1 --- --- - PRESCRIPTI✓E ROW 23 SO434223150 _-- - - -- - BLACK'GAT-MERIDIAN_7J LLC - - - - ----------i- --- - -PER Ll REENENT- _ /NST NO.202102J-J80209 !W MCMILLAN ROAEG G D - E EG— EG EC —EG EG EG EG EG - EG T4N R1 W Sect 34 60+00 61+00 62+00 63+00 64+00 65+00 2550 2550 RIGHT OF WAY PLANS 2548 2548 NOT FOR CONSTRUCTION D Ca ch M H 19' Lt. 2" FL Elev. 2538.16 (N ME A 61 ­58.92 RT L Elev. 2538 RIGHT OF WAY LEGEND 2 F . 7 W 2546 2546 PRESCRIPTIVE ST 60+ 2.58 IT STA 60+5 .25 T E fisting roun At M Millan CL ACQUISITIONS 2544 EO =254 .31 2544 —1.2 % TEMPORARY EASEMENTS 2542 0.11 2542 PERMANENT EASEMENTS \�AE STA 61+ 8.85 T ST 60+ 2.68 LT 2540 Eo =25 3.06 2540 Benchmarks to be provided at 99% Plans STA 60+ 1.74 2538 SD otch M H 7 Lt. 2538 12" FL Eli v. 2538.63 SW) 0 20 40 60 2536 2536 Plan Scale 12 PVC D S= 0.60 2534 253d Revisions: Design By: B&N Date: April 2024 Drawn By: B&N and CSC Date: April 2024 Survey By: CSC Date: 2021 ,W Ada County Highway District 3775 Adams Strwww Garden Cty,chdidaho.lorgldaho, 83714 Project Number: 321010 Project Name: McMillan Rd. & Black Cat Rd. RAB Sheet R13 Of R13 WENGI1VRING,INC. Traffic Impact Study Jamestown Ranch Subdivision — Meridian, Idaho EXECUTIVE SUMMARY CR Engineering, Inc. has been retained to prepare a traffic impact study(TIS) for the proposed Jamestown Ranch Subdivision located southeast of the McMillan Road and Black Cat Road intersection in Meridian,Idaho,as shown in Figure 1.1. The scope of this TIS was determined through coordination with the Ada County Highway District (ACHD) and Idaho Transportation Department (ITD) with inputs from the Community Planning Association of Southwest Idaho(COMPASS). The TIS evaluates the potential traffic impacts resulting from background traffic growth, in-process developments in the area, and the proposed development, and identifies improvements to mitigate the impacts if needed. Traffic impacts were evaluated based on the proposed land uses and accesses as shown in the preliminary site plan under weekday AM and PM peak hours traffic conditions. Table 1 summarizes the proposed improvements needed to mitigate the traffic impacts at the study area intersection and roadway segment for the following analysis years traffic conditions: ■ 2021 Existing traffic ■ 2025 Build-out year background traffic ■ 2025 Build-out year total traffic Table 1 —Proposed Improvements Summary 2021 2025 Build-Out Year Intersection Existing Background Total Ten Mile Rd Oand None None None McMillan Rd Quintale St Oand None None None Black Cat Rd Grand Lakes Wy O and N/A N/A WB left-turn lane 1 McMillan Rd McMillan Rd, Black Cat Rd to Site None None None McMillan Rd, Widen to five lanes Site to Ten Mile Rd None None or Alternative mitigation measures 1 Warranted based on ACHD turn lane guidelines; intersection meets minimum operational thresholds without turn lane 1.0 Proposed Development 1.1 Jamestown Ranch Subdivision is a proposed residential development anticipated to contain 294 single- family lots. The anticipated build-out year for the proposed development is 2025 but may change depending on the market conditions. 1.2 Based on the procedures outlined in the Trip Generation Handbook, 3Yd Edition and the Trip Generation Manual, 10`h Edition, both published by the Institute of Transportation Engineers (ITE), the proposed development is estimated to generate approximately 2,804 trips per weekday with 214 trips during the AM peak hour and 286 trips during the PM peak hour. ■ Based on the proposed land use, the development is not expected to attract pass-by trips or retain trips internally within the site ■ All trips generated by the development were assumed to be made by personal or commercial vehicles October 2021 1 WENGI1VRING,INC. Traffic Impact Study Jamestown Ranch Subdivision — Meridian, Idaho 1.3 The estimated site traffic distribution patterns are: ■ 10%traveling on Black Cat Road north of the site ■ 15%traveling on Black Cat Road south of the site ■ 10%traveling on McMillan Road west of Black Cat Road ■ 65%traveling on McMillan Road east of the site • 25%traveling on Ten Mile Road to the north • 10%traveling on McMillan Road to the east • 30%traveling on Ten Mile Road to the south 1.4 The development is proposing to construct one site access on Black Cat Road and one site access on McMillan Road: ■ Quintale Street and Black Cat Road intersection • Located approximately 480 feet south of Black Cat Road aligning with the existing Quintale Street to the west o Optimal location considering the site frontage length and existing accesses on Black Cat Road o Expected to be located outside the influence area of the future roundabout at the Black Cat Road and McMillan Road intersection • No additional turn lanes are warranted based on ACHD turn-lane guidelines under 2025 total traffic conditions • Meets minimum operational thresholds under 2025 total traffic conditions • Have adequate intersection sight distance o Black Cat Road segment along the site frontage is generally flat and straight o Proposed building setback and landscape design should not obstruct intersection sight distance ■ The minimum intersection sight distance for a 50-mph roadway is 555 feet ■ Proposed Grand Lakes Way and McMillan Road intersection • Located approximately 1,340 feet east of Black Cat Road and 980 feet west of Joy Street o The project Design Engineer coordinated and verified the location with ACHD o Grand Lakes Way was originally planned to be aligned with Joy Street to the north in accordance with the ACHD Master Street Map(MSM). However,aligning with Joy Street was not feasible due to the existing power pole and home to the south • Warrants a westbound left-turn lane based on ACHD turn-lane guidelines under 2025 total traffic conditions o The westbound left-turn lane is warranted by 2023 when the development generates approximately 140 PM peak hour trips,which is equivalent to approximately 140 dwelling units • Meets minimum operational thresholds under 2025 total traffic conditions • Have adequate intersection sight distance o McMillan Road segment along the site frontage is generally straight and flat o Proposed building setback and landscape design should not obstruct intersection sight distance ■ The minimum intersection sight distance for a 50-mph roadway is 555 feet 1.5 All internal local streets with front-on housing are anticipated to carry less than 1,000 vehicles per day(vpd) 1.6 Grand Lakes Way should be classified as a collector street: ■ Corresponds with the collector street identified in the MSM October 2021 2 WENGIIVRING,INC. Traffic Impact Study Jamestown Ranch Subdivision—Meridian, Idaho ■ The estimated ADT is 1,725 vpd south of McMillan Road ■ The estimated peak direction peak hour volume is 110 vph, which is below the 425 vph planning threshold for a 2-lane collector street 1.7 No internal local road is anticipated to have straight segments exceeding 750 feet. Therefore, additional traffic calming measures are not needed. 1.8 Jamestown Ranch Subdivision is estimated to generate over 2,800 vpd. With connectivity to the south via Quartet Subdivision and to the east via Volterra Heights Subdivision, Grand Lakes Way will likely exceed 3,000 vpd under long-term build-out conditions without the proposed access on Black Cat Road. Therefore, two site accesses as proposed are necessary to serve the development. ■ Jamestown Ranch Subdivision has over 2,600 feet of site frontage on McMillan Road and approximately 1,300 feet of site frontage on Black Cat Road. Having additional site access on Black Cat Road is expected to improve emergency vehicle access and response time. 2.0 2021 Existing Traffic Conditions 2.1 With 2021 existing traffic, all study area intersections currently meet minimum operational thresholds analyzed with the existing intersection control and lane configurations. In addition,the Quintale Street and Black Cat Road intersection does not warrant turn lanes based on ACHD turn lane guidelines. As a result, no intersection improvements are needed to mitigate 2021 existing traffic operations. 2.2 With 2021 existing traffic,all study area roadway segments meet ACHD level of service planning thresholds with the existing lane configuration. As a result,no roadway capacity improvements are needed to mitigate 2021 existing traffic operations. 3.0 2025 Build-Out Year Background Traffic Conditions (No Site Traffic) 3.1 With 2025 background traffic, all study area intersections are anticipated to continue to meet minimum operational thresholds analyzed with the existing intersection control and lane configurations. In addition, the Quintale Street and Black Cat Road intersection is not anticipated to warrant turn lanes based on ACHD turn lane guidelines. As a result, no intersection improvements are needed to mitigate 2025 background traffic operations. 3.2 With 2025 background traffic, all study area roadway segments are anticipated to continue to meet ACHD level of service planning thresholds with the existing lane configuration. As a result,no roadway capacity improvements are needed to mitigate 2025 background traffic operations. 4.0 2025 Build-Out Year Total Traffic Conditions (Background Plus Site Traffic) 4.1 With 2025 total traffic, all study area intersections are anticipated to continue to meet minimum operational thresholds analyzed with the existing intersection control and lane configurations. The Quintale Street and Black Cat Road intersection is not anticipated to warrant turn lanes based on ACHD turn lane guidelines. As a result,no intersection improvements are needed to mitigate 2025 total traffic operations. 4.2 With 2025 total traffic, the study area roadway segment of McMillan Road west of Ten Mile Road is anticipated to exceed ACHD level of service planning thresholds as a three-lane minor arterial with a median control,channelized left-turn lane during the PM peak hour.However,the segment meets ACHD thresholds during the shoulder hours. Two mitigation options are proposed to mitigate 2025 total traffic: ■ Option 1 —Widen to five lanes between the site and Ten Mile Road • According to the ACHD Capital Improvements Plan (CIP) and MSM, McMillan Road is programmed for only three lanes between McDermott Road and Linder Road October 2021 3 WENGIIVRING,INC. Traffic Impact Study Jamestown Ranch Subdivision—Meridian, Idaho ■ Option 2—Construct alternative mitigation measures within 1.5 miles of the development • As an alternative to the roadway widening which may not be feasible, the developer with coordination from ACHD may choose to construct one or more of the following to offset the development impacts: o Construct bicycle lanes along the site frontage,connecting to the existing bicycle lane terminus west of San Vito Way o Contribute to pedestrian crossing features for the future Black Cat Road and McMillan Road roundabout o Install 3-inch yellow retroreflective sheeting to the existing signal backplates at the Ten Mile Road and McMillan Road intersection This McMillan Road segment is anticipated to exceed ACHD level of service planning thresholds in the PM peak hour by 2024 with an increase of approximately 190 vph in the peak direction during the PM peak hour beyond 2021 existing volumes. By 2024,Jamestown Ranch Subdivision is estimated to have constructed 230 single-family dwelling units, contributing 93 trips in the peak direction during the PM peak hour. 4.3 The estimated site traffic as a percentage of the 2025 total traffic at the study area intersections and roadway segments are: ■ Ten Mile Road and McMillan Road intersection AM Peak=6.1%,PM Peak= 5.2% ■ Quintale Street and Black Cat Road intersection AM Peak= 14.6%,PM Peak= 13.5% ■ McMillan Road between Black Cat Road and site: AM Peak=7.6%,PM Peak=6.7% ■ McMillan Road between site and Ten Mile Road : AM Peak=22.6%,PM Peak= 14.2% October 2021 4 H. 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. I. 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. 24 Baratza/ MPP24-0008/ H-2024-0016 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 26 Baratza/ MPP24-0008/ H-2024-0016