State Street and Pierce Park Lane Intersection
The Ada County Highway District (ACHD) is designing future improvements for the State Street and Pierce Park Lane Intersection. This project aims to improve safety and connectivity for all users, accommodate future traffic volumes, and incorporate ideas and concerns gathered from the public.
The improvements for State Street and Pierce Park Lane include:
- Realigning Pierce Park Lane to improve safety and provide better line of sight for drivers
- Widening State Street within the project limits and add medians where necessary for safety
- Providing U-turns at multiple locations
- Adding continuous multi-use pathways for pedestrians and cyclists
- Adding additional crosswalk on State Street
The Ada County Highway District (ACHD) is designing future improvements for the State Street and Pierce Park Lane Intersection. This project aims to improve safety and connectivity for all users, accommodate future traffic volumes, and incorporate ideas and concerns gathered from the public.
The improvements for State Street and Pierce Park Lane include:
- Realigning Pierce Park Lane to improve safety and provide better line of sight for drivers
- Widening State Street within the project limits and add medians where necessary for safety
- Providing U-turns at multiple locations
- Adding continuous multi-use pathways for pedestrians and cyclists
- Adding additional crosswalk on State Street
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August 8, 2025
08 Aug 2025Share August 8, 2025 on Facebook Share August 8, 2025 on Twitter Share August 8, 2025 on Linkedin Email August 8, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street.
- Traffic has been shifted to the south so the contractor can construct the north side of State Street
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
- Work on stormwater system is on-going.
- Contractor starting placement of base gravels for sidewalk.
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August 1, 2025
01 Aug 2025Share August 1, 2025 on Facebook Share August 1, 2025 on Twitter Share August 1, 2025 on Linkedin Email August 1, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street.
- Traffic has been shifted to the south so the contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
- Work on stormwater system is on-going.
- Contractor starting placement of base gravels for sidewalk.
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July 25, 2025
25 Jul 2025Share July 25, 2025 on Facebook Share July 25, 2025 on Twitter Share July 25, 2025 on Linkedin Email July 25, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street.
- Traffic has been shifted to the south so the contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
- Work on stormwater system is on-going.
- Contractor starting placement of base gravels for sidewalk.
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July 18, 2025
18 Jul 2025Share July 18, 2025 on Facebook Share July 18, 2025 on Twitter Share July 18, 2025 on Linkedin Email July 18, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street
- Traffic has been shifted to the south so the Contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
- Work on stormwater system is on-going.
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July 11, 2025
11 Jul 2025Share July 11, 2025 on Facebook Share July 11, 2025 on Twitter Share July 11, 2025 on Linkedin Email July 11, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street.
- Traffic has been shifted to the south so the contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
- Work on stormwater system is anticipated to start the week of July 14th.
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July 2, 2025
02 Jul 2025Share July 2, 2025 on Facebook Share July 2, 2025 on Twitter Share July 2, 2025 on Linkedin Email July 2, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street.
- Traffic has been shifted to the south so the Contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work. Underground electrical work is on-going.
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Construction Update: Hertford Way
26 Jun 2025Share Construction Update: Hertford Way on Facebook Share Construction Update: Hertford Way on Twitter Share Construction Update: Hertford Way on Linkedin Email Construction Update: Hertford Way linkAs part of the State Street and Pierce Park project, Veolia will be performing utility work in front of Hertford Way next week.
To maintain local access for residents, and keep Hertford Way open to vehicles, a temporary traffic route will be in place. Northbound drivers will be directed to travel on the LEFT side of the island along Hertford Way at the intersection with State Street. Delineators will be set up to safely guide both northbound and southbound traffic through the area.
Please follow posted detour signs and use extra caution near the work zone.
Work is scheduled to begin early next week and is expected to be completed by end of day Thursday, July 3. All work is weather dependent.
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June 26, 2025
26 Jun 2025Share June 26, 2025 on Facebook Share June 26, 2025 on Twitter Share June 26, 2025 on Linkedin Email June 26, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street.
- Traffic has been shifted to the south so the Contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
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June 20, 2025
21 Jun 2025Share June 20, 2025 on Facebook Share June 20, 2025 on Twitter Share June 20, 2025 on Linkedin Email June 20, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street
- Traffic has been shifted to the south so the Contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
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June 13, 2025
13 Jun 2025Share June 13, 2025 on Facebook Share June 13, 2025 on Twitter Share June 13, 2025 on Linkedin Email June 13, 2025 link- Utility relocation work is on-going.
- Traffic calming plan has been implemented in the neighborhoods north of State Street.
- Traffic has been shifted to the south so the contractor can construct the north side of State Street.
- Left turns have been eliminated through the work zone.
- Contractor is excavating the north side of State Street. Some work is delayed pending utility work.
- Underground electrical work is on-going.
Key Dates
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December 17 2024
Materials from the Construction Open House
Business Meeting Materials
Project Background
The State Street Corridor has been studied for several years. ACHD and partnering agencies/jurisdictions have evaluated deficiencies along State Street, developed guidelines encouraging transit-supportive land uses, and identified prioritized transit and traffic improvements. The State Street Transit and Traffic Operation Plan served as the basis for the State Street and Pierce Park intersection improvements. In 2017, the ACHD Commission adopted the State Street and Pierce Park Lane Concept Study. ACHD finalized the design in 2019. In 2020, the ACHD Commission voted to delay the project and work on a redesign to shift the project north. In 2021, the project was restarted to incorporate the northern shift.
Timeline
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2017
State Street and Pierce Park Lane Intersection has finished this stageConcept study approval
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2018
State Street and Pierce Park Lane Intersection has finished this stageDesign of recommended alternative
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2019
State Street and Pierce Park Lane Intersection has finished this stageRight-of-way acquisition
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2020
State Street and Pierce Park Lane Intersection has finished this stageACHD Commission postponed project
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2021
State Street and Pierce Park Lane Intersection has finished this stageRevised design
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2022
State Street and Pierce Park Lane Intersection has finished this stageFinalized design of recommended alternative and received public input
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2023
State Street and Pierce Park Lane Intersection has finished this stageAcquired right-of-way
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2025
State Street and Pierce Park Lane Intersection is currently at this stageConstruction
Who's Listening
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Project Manager
Phone 208-387-6100 Email projects@achdidaho.org (External link) -
Supervisor, Construction
Phone 208-387-6100 Email projects@achdidaho.org (External link) -
Business & Community Relations Coordinator
Phone 208-387-6100 Email ejohansen@achdidaho.org (External link)