PROJECT OVERVIEW

The California Department of Transportation (Caltrans) is making improvements to Interstate 405 (I-405), between Interstate 5 (I-5) and Harbor Boulevard. The project will improve safety for all modes of travel, increase the life expectancy of pavement, enhance traffic operations, and mitigate congestion.

CONSTRUCTION NOTICE

Upcoming Weekend Full Closure I-405 Jeffrey Road On-Ramp

A full weekend closure of the northbound (NB) I-405 Jeffrey Road on-ramp is scheduled for Friday, Sept. 19 at 10 p.m. through Monday, Sept. 22 at 5 a.m.* for crews to safely perform paving and drainage work at the on-ramp.

Additionally, the NB I-405 Jeffrey Rd. loop on-ramp and NB I-405 Jeffrey off-ramp will be intermittently closed at night throughout this closure period.

Detour routes will be posted to help motorists navigate through the area during the closure. Please follow all temporary construction signage and reduce your traveling speed through our construction zone.

*Construction is a dynamic process. Closure times and construction activity is subject to change.

Detour Routes

  1. Southbound (SB) Jeffrey Rd. > Westbound (WB) Alton Pkwy. > SB Culver Dr. > NB I-405 Culver on-ramp

  2. SB Jeffrey Rd. > SB University Dr. > NB Culver Dr. > NB 405 I-405 Culver loop on-ramp

PROJECT IMPROVEMENTS INCLUDE:

Enhanced safety for the traveling and public maintenance crews.

Pavement rehabilitation and bridge widenings.

Traffic management system improvements.

Irrigation and landscape enhancements.

The addition of a new Park and Ride facility.

Bike Lane and ADA Curb Ramp improvements.

FUNDING

The project is funded through 2020 State Highway Operation and Protection Program (SHOPP), a component under Senate Bill 1 (Roads repair and Accountability Act of 2017).

Total Project Cost: $273M*