November 18, 2025

County will lead $2.7 million project along Slauson Ave./Mulberry Dr. from Paramount Blvd. to Scott Ave.

Los Angeles, CA – Today, the Los Angeles County Board of Supervisors approved a project led by the County’s Department of Public Works for the synchronization of traffic signals along major corridors through Pico Rivera, Santa Fe Springs, Whittier, and the unincorporated communities of South Whittier and West Whittier-Los Nietos. The project is estimated to cost $2,764,300. Construction is expected to begin in August 2026 and conclude by September 2027.

“Whether in a car, on a bus, or on foot, this project is going to make traveling on Slauson and Mulberry smoother, faster, and safer for thousands of residents, and help improve quality of life for the neighborhoods along this busy corridor,” said Hahn, whose district includes the entire project area. “This is good public infrastructure working for the communities who use it.”

The project includes upgrading traffic signal equipment, pedestrian enhancements, and other intersection safety improvements along the corridor. The project will modify and synchronize the traffic signals along Slauson Avenue/Mulberry Drive between Paramount Boulevard in Pico Rivera and Scott Drive in Whittier, an approximately 7-mile stretch of the major east-west artery.

According to the United States Department of Transportation, the benefits of traffic signal synchronization include improved air quality and reduced fuel consumption, reduced congestion, fewer serious accidents, and reduced aggressive driving behavior, including red-light running.

The project’s $2,764,300 cost will be shared by the County and the cities it runs through. The City of Pico Rivera will contribute approximately $610,000; the City of Santa Fe Springs some $365,700; and the City of Whittier another $450,900. The County’s share is estimated to be $1,337,700.

Full-size project map available for download here: Slauson/Mulberry Traffic Signal Synchronization Project map