State Street and Pierce Park Lane Intersection

Please join ACHD Staff and the Contractor for a construction Open House on Tuesday, December 17th from 6:00 - 8:00 p.m. at Cynthia Mann Elementary (5401 W. Castle Drive, Boise), to learn more about the State and Pierce Park Project.

Materials from open house

• Display boards
• Project design
• Business meeting presentation

The Ada County Highway District (ACHD) will be reconstructing the State Street and Pierce Park intersection starting at the beginning of January 2025*. Work is expected to be complete in Spring 2026.

What to Expect

• State Street Traffic: Two lanes in each direction will remain open; Left turns within the construction zone won’t be allowed to keep things moving smoothly; State Street will have daytime closures, but only outside the busiest commute times.
• Pierce Park Lane Restrictions: At the State Street intersection some lanes will be restricted.
• Pedestrians and Bike Routes: Detours will be in place to keep pedestrians and bicyclists moving safely.
• Night work and Construction Activity: Some night work is to be expected for safety. Expect general construction noise, including equipment backup alarms, dust and ground vibration.
• Business Access: Access to businesses will stay open, and the contractor will work with property and business owners to keep entrances clear or provide alternate accesses.

Construction Open House

• December 17, 2024 | 6-8 p.m.
• Cynthia Mann Elementary | 5401 W. Castle Dr., Boise

Starting at the end of October, Idaho Power will start the process of moving power poles at the intersection of Pierce Park and State Street. ACHD's portion of the project will start at the end of December 2024 or early January 2025.

ACHD will hold a Construction Kick Off Meeting for citizens in December. ACHD staff and the Contractor will be available to answer any questions citizens have about the project. Additional details about the meeting will be provided soon.