Ada County Highway District

2019 Downtown Boise Maintenance

Construction Update as of 06/14/19:

Bannock Street, 5th Street to 2nd Street, crews will begin work the week of June 10th and that is expected to last until June 14th.The road will be closed during this time. The intersection at Bannock Street and 5th Street will closed, however the intersections of Bannock Street with 2nd, 3rd and 4th Streets will remain open. 

Idaho Street from 1st Street to 4th Street, will be closed from June 17th to June 21st for roadway improvements.  The week of June 23rd, roadwork is expected to begin on Idaho Street, 8th to 11th Street.

For up-to-date information on this and other work, please see the ACHD Roadwork in the Area map

Construction Update as of 05/17/19:

Bannock Street, Capitol Boulevard to 2nd Street, crews will begin concrete work the week of May 20th. This work will require temporary pedestrian detours. Following concrete work the crews will begin work on roadway improvements. The roadway work is tentatively expected to begin the week of June 3rd.

Idaho Street, 1st to 16th Street, crews will begin concrete work the week of May 28th. This work will require temporary pedestrian detours. Following concrete work the crews will begin work on roadway improvements. The roadway work is tentatively expected to begin the week of June 17th.

Please keep in mind the schedule above is subject to change. Prior to ACHD's portion of work there may be utility relocations for these road segments.

There was a preconstruction conference held on May 7th. Work is expected to begin as early as the week of May 13th.

General Description:
The Ada County Highway District will begin its 2019 Downtown Boise Maintenance which is pavement rehabilitation project. Construction is scheduled to start early May 2019 and run through late September 2019. Work includes repaving, replacing some curb, gutter sidewalk and pedestrian ramps and utility relocation and replacements. Project segments include:

2019 Downtown Boise Implementation - HB312

  • 16th Street, Front Street to State Street
  • 15th Street, Front Street to State Street: Concrete work expected to begin as early as June 18th.
  • Bannock Street, 16th Street to 15th Street
  • Bannock Street, Capitol Boulevard to 2nd Street: Bannock Street, 5th to 2nd will be closed from June 10th to June 14th. the intersections of Bannock ad 4th, 3rd, and 2nd will remain open. The intersection of Bannock and 5th Street will be closed. Paving on Bannock, from Capitol Blvd to 5th Street is complete. Paving on Bannock from 5th to 2nd Street began on June 13th.

Main Street and Idaho Street, 16th Street to Broadway Avenue - HB312

  • Main Street, 16th Street to 13th Street
  • Main Street, 10th Street to 8th Street
  • Main Street, Capitol Boulevard to Broadway Avenue
  • Idaho Street, 16th Street to Broadway Avenue: Idaho, 1st Street to 4th Street will be closed for mill, grade and paving the week of June 17th. Idaho Street, 8th Street to 11th Street will be closed for mill, grade and paving the week of June 23rd.

Time Frame

Start Date:
May 2019
End Date:
Fall 2019

Return to Projects

Related Documents

Project Manager


We Drive Quality Transportation For All Ada County ~
Anytime...Anywhere

Ada County Highway District © 2017
For Questions or problems with this Web site contact the Webmaster