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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March 20, 2025
Share March 20, 2025 on Facebook Share March 20, 2025 on Twitter Share March 20, 2025 on Linkedin Email March 20, 2025 link20 Mar 2025- Utility relocation work is on-going.
- Irrigation work is nearly complete.
- 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.
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March 14, 2025
Share March 14, 2025 on Facebook Share March 14, 2025 on Twitter Share March 14, 2025 on Linkedin Email March 14, 2025 link14 Mar 2025- Work began January 20th.
- Contractor is removing trees, fence, and other obstructions.
- Utility relocation work is on-going. Irrigation work is on-going.
- Traffic calming plan was implemented in the neighborhoods north of State Street beginning the week of March 10th.
- Traffic will be shifted to the south as early as March 19th (eastbound) & March 20th (westbound). Work will be done at night.
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March 11, 2025 - Traffic Shift Information & Map
Share March 11, 2025 - Traffic Shift Information & Map on Facebook Share March 11, 2025 - Traffic Shift Information & Map on Twitter Share March 11, 2025 - Traffic Shift Information & Map on Linkedin Email March 11, 2025 - Traffic Shift Information & Map link11 Mar 2025The State Street & Pierce Park project moves into the next phase of construction next week.
- Traffic will be shifted to the south to allow the contractor to rebuild the north side of State Street and the west side of Pierce Park.
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On the night of March 19th, eastbound traffic will be shifted to the south. On the night of March 20th, westbound traffic will be shifted to the south.
- Work includes re-striping the roadway and adjusting the signal at State Street and Pierce Park.
- Work hours are from 8pm to 6am and drivers should expect delays.
- After traffic is shifted, there will be two lanes of traffic in each direction on State Street during peak hours and non-working hours (non-working hours are nights and weekends). Single lane closures are allowed on State Street during the daytime, during non-peak hours.
- Left turns will be eliminated through the work zone. The left-turn lane from eastbound State Street onto Pierce Park will be eliminated during construction.
- Pierce Park will have one lane in each direction. There are currently two southbound lanes, one for turning right onto westbound State Street and one for turning left onto eastbound State Street. During construction, there will be one southbound lane from which drivers can turn either left or right.
- The speed limit will be reduced to 30 MPH through the work zone.
- Pedestrian access will remain open through the work zone.
- Business access will remain open for all businesses in the work zone.
- Construction work is weather dependent.
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March 6, 2025
Share March 6, 2025 on Facebook Share March 6, 2025 on Twitter Share March 6, 2025 on Linkedin Email March 6, 2025 link06 Mar 2025- Work began January 20th.
- Contractor is removing trees, fences, and other obstructions.
- Utility relocation work is on-going.
- Irrigation work is on-going.
- Traffic calming plan will be implemented in the neighborhoods north of State Street beginning the week of March 10th.
- Traffic will be shifted to the south as early as March 19th & 20th.
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February 28, 2025
Share February 28, 2025 on Facebook Share February 28, 2025 on Twitter Share February 28, 2025 on Linkedin Email February 28, 2025 link28 Feb 2025- Work began January 20th.
- Contractor is removing trees, fence, and other obstructions.
- Utility relocation work is on-going.
- Irrigation work is on-going.
- Traffic calming plan will be implemented in the neighborhoods north of State Street beginning the week of March 10th.
- Traffic will be shifted to the south as early as March 19th & 20th.
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February 20, 2025
Share February 20, 2025 on Facebook Share February 20, 2025 on Twitter Share February 20, 2025 on Linkedin Email February 20, 2025 link20 Feb 2025- Work began January 20th. Contractor is removing trees, fence, and other obstructions.
- Utility relocation work is on-going.
- Irrigation work is on-going.
- Traffic calming plan will be implemented in the neighborhoods north of State Street beginning the week of March 10th.
- Traffic will be shifted to the south as early as March 20th.
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February 14, 2025
Share February 14, 2025 on Facebook Share February 14, 2025 on Twitter Share February 14, 2025 on Linkedin Email February 14, 2025 link14 Feb 2025- Pre-construction conference was held December 17th.
- Work began January 20th.
- Contractor is removing trees, fence, and other obstructions.
- Utility relocation work is on-going.
- Irrigation work will start the week of February 17th.
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February 7, 2025
Share February 7, 2025 on Facebook Share February 7, 2025 on Twitter Share February 7, 2025 on Linkedin Email February 7, 2025 link07 Feb 2025- Work began January 20th.
- Contractor is removing trees, fence, and other obstructions.
- Utility relocation work is on-going.
- Irrigation work will start the week of February 10th.
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January 31, 2025
Share January 31, 2025 on Facebook Share January 31, 2025 on Twitter Share January 31, 2025 on Linkedin Email January 31, 2025 link31 Jan 2025- Work began January 20th.
- Contractor is removing trees, fence, and other obstructions.
- Utility relocation work is on-going.
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January 23, 2025
Share January 23, 2025 on Facebook Share January 23, 2025 on Twitter Share January 23, 2025 on Linkedin Email January 23, 2025 link23 Jan 2025- Work began January 20th.
- Contractor is removing trees, fence, and other obstructions.
- Utility relocation work is on-going.
Drone Footage
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)