Special Construction Alert as of Sept. 21: Interstate 5 (I-405 to SR-55)

As of Sept. 21, 2026

有關此項目的更多信息，請聯繫 I-5 社區服务團隊，郵箱為 i5Project405to55@octa.net 或電話 888-209-5550，或查看 octa.net/i-5project.

이 프로젝트에 대한 자세한 내용은 I-5 Community Outreach Team에 이메일(i5Project405to55@octa.net) 또는 전화(888-209-5550)로 문의하시거나, octa.net/i-5project를방문해주시기바랍니다.

BRIDGE GIRDER WORK AND FULL ROAD CLOSURES AT JAMBOREE ROAD/I-5 BRIDGE

DOWNLOAD DETOUR MAP

Nighttime construction activities and closures are expected to take place starting this week 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.

*This work may be loud and ongoing. The schedule is subject to change due to inclement weather or unforeseen operational issues.

*Freeway and street lane closures will occur regularly throughout the duration of the project's construction. At least one lane will be open to traffic at all times, unless otherwise specified. See closure section above for more information.

Google Map

Click on this image to view construction activities on the project interactive map.

Image is of a clipboard with a traffic cone on it to encourage people to click on the link next to it to view a detailed closure list

To view and print a detailed list of closures and detours, CLICK HERE!

A clickable preview of the I-5 Improvement Project area on Google Maps. Click this image to view the interactive map on Google Maps.

Bookmark the closures and detours map above for quick access to real-time construction information. Click on the construction icons to view activities and closure and detour information. Plan for additional travel time through the area. Detour signs will be in place to assist motorists.

Stay Connected

We invite you to sign up for project updates so you’ll be the first to know about upcoming construction activities, traffic changes, and community meetings and when we’ll be out in your community at local events - we hope you’ll stop by and say hello!