Caltrans announces overnight lane and full directional freeway closures on State Route 118 (SR-118) between Los Angeles Avenue and Princeton Avenue in Ventura County. This closure is part of the Arroyo Simi Safety Fence Project to install safety barrier systems along the Arroyo Simi Overhead Bridge in the City of Moorpark.
The closure schedule is as follows:
Eastbound SR-118 (Between Los Angeles Ave to Princeton Ave)
- Full directional freeway closure from 10:00 p.m. Tuesday, May 12 to 5:00 a.m. Wednesday, May 13, 2026
- Los Angeles Avenue on-ramp to eastbound SR-118 will be closed.
Westbound SR-118 (Between Princeton Ave to Los Angeles Ave)
- Lane closure from 9:00 p.m. Tuesday, May 12 to 6:00 a.m. Wednesday, May 13, 2026
- Princeton Avenue on-ramp to westbound SR-118 will be closed during the hours listed above.
All closures are subject to change. Motorists will be detoured via local routes during these closures. See detour details below.
DETOUR INFORMATION
Eastbound SR-118 Detour:
- Exit at New Los Angeles Avenue off-ramp
- Travel west on New Los Angeles Avenue
- Turn north on Spring Road
- Turn east on Princeton Avenue
Re-enter eastbound SR-118 at the Princeton Avenue on-ramp
Westbound SR-118 Detour:
- Exit at Princeton Avenue off-ramp
- Travel south and west on Princeton Avenue
- Turn south on Spring Road
- Turn east on New Los Angeles Avenue
- Reconnect to southbound State Route 23
Ramp traffic will be detoured during the hours of the closures. Caltrans urges motorists to avoid the area during construction and use alternate routes where possible, including U.S. 101, SR-23, and I-5.
This safety project will construct new safety barrier systems on both the northbound and southbound directions of SR-118, spanning the Arroyo Simi Overhead in the City of Moorpark. In collaboration with the City of Moorpark and surrounding Ventura County communities, Caltrans initiated planning and design of permanent preventative infrastructure.
Sign up for notifications about the project here:
SR-118 Arroyo Simi Safety Fence Form
For more information on the Arroyo Simi Safety project go here:
SR-118 Arroyo Simi Safety Fence Project Page
Real-time closures at
Caltrans QuickMap.
Caltrans reminds drivers to “Be Work Zone Alert” and to “Slow for the Cone Zone.”
