I-5 (I-405 to SR-55) Improvement Project
Construction Updates
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Click to download to view and print a detailed list of closures and detours.

Construction Closures & Detours
View the latest project closures and detours using the interactive map below.
Social Media Feed
Latest Activity
- As of Oct. 2, 2026
- As of Sept. 25, 2026
- Peters Canyon Drainage Demolition Alert
As of Sept. 22, 2026 - As of Sept. 21, 2026
- As of Sept. 18, 2026
- As of Sept. 14, 2026
- As of Sept. 11, 2026
- As of Sept. 4, 2026
- As of Aug. 28, 2026
- As of Aug. 26, 2026
- As of Aug. 21, 2026
- As of Aug. 19, 2026
- As of Aug. 14, 2026
- As of Aug. 7, 2026
- As of July 31, 2026
- As of July 24, 2026
- As of July 20, 2026
- As of July 17, 2026
- As of July 13, 2026
- As of July 10, 2026
- As of July 7, 2026
- As of July 2, 2026
- As of June 26, 2026
- As of June 22, 2026
- As of June 19, 2026
- As of June 12, 2026
- As of June 5, 2026
- As of June 2, 2026
- As of May 29, 2026
- As of May 22, 2026
- As of May 15, 2026
- As of May 8, 2026
- As of May 1, 2026
- As of April 24, 2026
- As of April 17, 2026
- As of April 10, 2026
- As of April 3, 2026
- As of April 1, 2026
- As of March 27, 2026
- As of March 20, 2026
- As of March 13, 2026
- As of Feb. 27, 2026
- As of Feb. 13, 2026
- As of Feb. 10, 2026
Photo Gallery
Crews performing drilled foundation work to support the I-5 bridge construction.
Crews are assembling reinforcing steel cages for bridge foundation construction beneath the I-5 bridge
Aerial photos of project area
Aerial photos of project area
I-5/Peters Canyon Hiking & Riding Trail
Jamboree and SR-261 Bridges at I-5
Segment 1
Segment 2





