Jamboree Road Girder Installation

Nighttime construction activities and closures are expected to take place for bridge girder installation at the Jamboree Road/I-5 bridge. This work will require full road closures of Jamboree at I-5. Crews are expected to alternate work and closures between both sides of Jamboree.

For more information on these closures and associated detours, please view the detour maps above, the Google Interactive Map, or plan your route using the Waze navigation app.

Anticipated Schedule
As early as Thursday, Sept. 24 through Friday, Oct. 2.

Anticipated Work Hours
Daytime: As early as 6 a.m. to 4 p.m.
Nighttime: As early as 10 p.m. to 5 a.m.

Peters Canyon Drainage Work and CIDH

Nighttime construction activities and closures are expected for the demolition of portions of the channel at the Peters Canyon Hiking & Riding Trail for drainage work. This work requires full closures of westbound (WB) and eastbound (EB) Peters Canyon Trail between Bryan Avenue and Harvard Avenue/Walnut Avenue.

For more information on these closures and associated detours, please view the detour map above, the Google Interactive Map, or plan your route using the Waze navigation app.

Remaining daytime construction activities are expected at the I-5 Peters Canyon Hiking and Riding Trail Bridge for cast-in-drilled-hole (CIDH) work.

Intermittent full closures of the Peters Canyon Hiking and Riding Trail at I-5 may occur through late 2026 for moving equipment in the construction area.

At least one lane in each direction will remain open at all times, unless otherwise noted.

Anticipated Schedule
Demolition for Drainage Work: Tuesday, Sept. 22 and Wednesday, Sept. 23.
CIDH: As early as Thursday, Sept. 24 through mid-October.

Anticipated Work Hours
Daytime: As early as 6 a.m. to 4 p.m.
Nighttime: As early as 9 p.m. to 5 a.m.