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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May 16, 2025
Share May 16, 2025 on Facebook Share May 16, 2025 on Twitter Share May 16, 2025 on Linkedin Email May 16, 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.
- Underground electrical work is on-going.
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May 8, 2025
Share May 8, 2025 on Facebook Share May 8, 2025 on Twitter Share May 8, 2025 on Linkedin Email May 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.
- Carlsbad Way will be closed from April 29th through May 6th for utility work and roadway work.
- Contractor is excavating the north side of State Street.
- Underground electrical work is on-going.
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May 2, 2025
Share May 2, 2025 on Facebook Share May 2, 2025 on Twitter Share May 2, 2025 on Linkedin Email May 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.
- Carlsbad Way will be closed from April 29th through May 6th for utility work and roadway work.
- Contractor is excavating the north side of State Street.
- Underground electrical work is on-going.
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April 25, 2025
Share April 25, 2025 on Facebook Share April 25, 2025 on Twitter Share April 25, 2025 on Linkedin Email April 25, 2025 link- Utility relocation work is on-going.
- Irrigation work is 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.
- Pierce Park will be closed on Saturday April 26th & Sunday April 27th for utility work.
- Carlsbad Way will be closed from April 29th through May 6th for utility work and roadway work.
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Pierce Park Lane Closed April 26-27
Share Pierce Park Lane Closed April 26-27 on Facebook Share Pierce Park Lane Closed April 26-27 on Twitter Share Pierce Park Lane Closed April 26-27 on Linkedin Email Pierce Park Lane Closed April 26-27 linkThis weekend, April 26–27, Pierce Park Lane will be closed between State Street and Lucky Lane for waterline work being completed by Veolia in coordination with ACHD’s State Street and Pierce Park Lane project.
During the closure, drivers should use Collister Drive, Hill Road, and Castle Drive to detour around the area (see detour map).
Left turns continue to be prohibited on State Street through the construction zone. -
April 17, 2025
Share April 17, 2025 on Facebook Share April 17, 2025 on Twitter Share April 17, 2025 on Linkedin Email April 17, 2025 link- Utility relocation work is on-going.
- Irrigation work is 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.
- Contractor is working on the north side of State Street.
- Pierce Park will be closed on Saturday April 26th & Sunday April 27th for utility work.
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April 11, 2025
Share April 11, 2025 on Facebook Share April 11, 2025 on Twitter Share April 11, 2025 on Linkedin Email April 11, 2025 link- Utility relocation work is on-going.
- Irrigation work is 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.
- Contractor is working on the north side of State Street.
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April 4, 2025
Share April 4, 2025 on Facebook Share April 4, 2025 on Twitter Share April 4, 2025 on Linkedin Email April 4, 2025 link- Utility relocation work is on-going.
- Irrigation work is 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.
- Contractor is beginning work on the north side of State Street.
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April 1, 2025
Share April 1, 2025 on Facebook Share April 1, 2025 on Twitter Share April 1, 2025 on Linkedin Email April 1, 2025 linkBeginning tonight, the sidewalk on the south side of State Street, near Pierce Park, will be closed.
The closure is to allow crews to make repairs to a phone line that was struck during a boring operation.
During the repairs, the sidewalk on the south side of State Street will be closed between the two Lakeside Drives.
Pedestrians should use either Glenwood to the west or Pierce Park to the east to get around the closure.
Repairs are expected to be complete by Friday.
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March 28, 2025
Share March 28, 2025 on Facebook Share March 28, 2025 on Twitter Share March 28, 2025 on Linkedin Email March 28, 2025 link- Utility relocation work is on-going.
- Irrigation work is 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.
- Contractor is beginning work on the north side of State Street.
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 -
Supervisor, Construction
Phone 208-387-6100 Email projects@achdidaho.org -
Business & Community Relations Coordinator
Phone 208-387-6100 Email ejohansen@achdidaho.org