State Street, 8th Street to 4th Street

• Project includes work on State Street between 4th Street and 8th Street
  • Milling between 4th and 6th Streets is complete.
  • Veolia water work started April 1st and is on-going.
  • Milling between 6th and 8th Streets is complete.

Next week, the closure on State Street will be extended behind the Capitol Building.

The road is currently closed between 4th and 6th Streets. Beginning Tuesday, State Street will be closed between 4th and 8th Streets. This closure will include the intersections at 4th, 5th, 6th, and 8th Streets.

Commuters should use Washington Street or Jefferson Street as a detour (see updated detour map).

The intersection at 8th Street is expected to reopen this summer. Work on the rest of the project is expected to last until the end of November, weather dependent.

The work is part of ACHD's State Street, 8th Street to 4th Street project, which includes reconstructing the roadway, upgrading traffic signals, and upgrading the enhanced crosswalk behind the Idaho State Capitol to an overhead rectangular rapid flashing beacon (RRFB).

• Milling between 4th and 6th St complete.
• Veolia water work started April 1st and is on-going.

• Project includes work on State Street between 4th Street and 8th Street.
• Milling between 4th and 6th St. complete.
• Veolia water work has started April 1st.

• Project includes work on State Street between 4th Street and 8th Street – Contractor anticipates starting March 25.
  • Milling between 4th and 6th – Veolia work to start immediately after.
  • Milling between 4th and 6th street has been completed.
  • Veolia water work has started.

• The closure of State St between 6^th St and 4^th St, including the 5^th St and 4^th St intersections, is scheduled to start March 25^th
  • The State St and 6^th St intersection will remain open
  • The signed detour 3^rd St – see detour map
  • ACHD’s contractor will remove pavement so that Veolia’s contractor can begin work on the waterline
• Closure to 8^thSt will be extended, including the intersections, after the Legislative Session has concluded
  • Likely starting within a week after the Legislative Session
  • This closure is scheduled to continue into November

Traffic Advisory for March 21, 2024:

Next week, work will begin on ACHD’s State Street, 4^th to 8^th Street Project.

Starting Monday, State Street will be closed between 4th and 6th Streets. This closure includes the intersections at 4th and 5th Streets. Commuters should use Washington Street or Jefferson Street as a detour (see detour map).

The State Street closure is scheduled to extend to 8th Street after the legislative session has concluded.

The closure is expected to last until the end of November, weather dependent. The roadwork includes reconstructing the roadway, upgrading traffic signals, and upgrading the enhanced crosswalk behind the Idaho State Capitol to an overhead Rectangular Rapid Flashing Beacon.

The Ada County Highway District (ACHD) will be constructing improvements to State Street between 8th Street and 4th Street starting as early as late March 2024*. Work is expected to be complete in Fall 2024.

Traffic and Construction Impacts

• Pedestrian and bicyclist detours.
• On-street parking impacts.
• Short-term street closures.
• Crews may work 24 hours a day, seven days a week when blocks are fully closed, though night work will be evaluated for each location.
• General construction noise, including equipment backup alarms, dust and ground vibration.
• The contractor will coordinate with property and business owners to maintain access or provide alternative access.
• No work will be done adjacent to the Idaho State Capitol during the Legislative Session without prior ACHD approval.

*Due to contractor staffing issues and supply-chain shortages, the construction schedule could change.

• Pre-Construction Meeting TBD.
• Notice to Proceed is anticipated for late March.
• Project includes work on State Street between 4th Street and 8th Street.