Outside Agency Projects

Many projects conducted in and around Malibu by agencies other than the City of Malibu can affect commute time through the construction areas and may cause additional traffic on alternate routes. Motorists should take extra caution when passing through the work zones.

Trancas Creek Bridge Replacement Project

Schedule TBD

The California Department of Transportation (Caltrans) District 7 proposes to replace the Trancas Creek Bridge on Pacific Coast Hwy (PCH) in Malibu due to the age of the bridge and its vulnerability to erosion.


Caltrans held a public hearing in May 2017 and accepted written comments through June 2017, including a comment letter submitted by the City of Malibu. In July 2017, Caltrans announced it had selected Alternative 3 (Long Bridge) for the project, and also released the Mitigated Negative Declaration / Finding No Significant Impact.

Project details are available at DOT.CA.gov/D7/Projects/Trancas.

LA County Public Works logo

Topanga Canyon Utility Undergrounding Project

July 2015 to December 2018

In July 2015, the Los Angeles County Department of Public Works began work on a project to underground utilities in Topanga Canyon. The projects will improve the visual look of the area, and enhance public safety by removing most utility poles and placing utility lines underground. Utility service from the main utility lines into residential and business properties can be undergrounded up to 100 feet from the road right-of-way.

While the majority of the civil work was completed by early 2017, SCE estimates the project will be extended through March or April 2018, due to long lead times for some required materials. This also takes into account a moratorium on construction from Thanksgiving through the end of the year.

Motorists can expect intermittent traffic delays on Topanga Canyon Boulevard over the construction period. Work hours are Monday through Friday, 9:00 AM to 3:00 PM, with no work taking place on weekends, major holidays, or Red Flag days. Project details and updates can be found on the County's project webpage.