Project Overview

Lambert57 RenderingThe new 57/Lambert Interchange will add capacity and relieve current and future congestion. View the community meeting PowerPoint Presentation for more details. Caltrans is the lead agency and is responsible for all aspects of construction management throughout the project, including traffic control and primary public communication. City staff meets with Caltrans regularly to get construction updates and is working with the agency on ways to minimize construction disruption and share their public information updates.

This $98 million project is scheduled for completion by December 2021. Improvements include providing additional capacity, better traffic flow, enhanced safety, reduced congestion and delays. Additionally, the project will enable the future construction of the Northbound Truck Climbing Lane, between Lambert Road and the Orange County and Los Angeles County line. Click here to view a rendering of what the new interchange will look like.

Brea was awarded approximately $75 million from State and Federal funds. The City has also committed about $12 million for the project from its local mitigation funds, and was awarded over $12 million from OCTA Measure M 2 funds, now known as “OC Go” Funds, for property acquisition and construction. All in, approximately 88% of the project funding comes from grants.

View the project Fact Sheet.

Keep informed by following Caltrans' website and social media platforms: Facebook, Twitter and Instagram. Additionally, follow the City of Brea official news sources for updates. of new Caltrans information. Please allow some extra time, watch for detour information and drive carefully.