California Department of Transportation

California Department of Transportation

Date: December 19, 2013
District: 07 - Los Angeles & Ventura counties
Contact: Lauren Wonder
Phone: (213) 897-9092


BALDWIN PARK – Caltrans today opened a 4.4-mile section of carpool lanes on Interstate 10 from Interstate 605 to Puente Avenue in Baldwin Park. This is the first of three projects that will provide one continuous carpool lane from downtown Los Angeles to San Bernardino County, a distance of more than 35 miles.

The $180 million project adds to the 512 existing miles of carpool lanes, also known as high-occupancy vehicle (HOV) lanes, in Los Angeles County, and included $66 million in Proposition 1B funds, the voter-approved bond passed in 2006. To date, more than $17 billion in Proposition 1B funds have been put to work statewide.

“This section of road averages more than 200,000 vehicle trips per day, so these additional lanes will be of tremendous benefit to the motoring public,” said Caltrans Director Malcolm Dougherty. “Caltrans is taking direct steps to reduce travel times on some of the state’s most congested highways, and this is a vital route in the Los Angeles area’s regional freeway system.”

The next two phases of the I-10 carpool lane project, estimated at $560 million, will extend the carpool lane from Puente Avenue to Citrus Street in West Covina, then to State Route 57 near Pomona, with the second slated to begin next summer.

“As the transportation funding authority for Los Angeles County, Metro programmed $192 million for completion of this first of three segments of the I-10 carpool lanes,” said Diane DuBois, Chair of the Los Angeles County Metropolitan Transportation Authority. “We are pleased Caltrans delivered this project under the programmed budget. Metro also has programmed the funds for the remaining two carpool lane segments for a total of $560 million.”

This project is part of numerous ongoing and upcoming upgrades in Los Angeles County. 

  • State Route 60 Rehabilitation Project – A $121.5 million project that will provide a new surface and a smoother drive for motorists, improving traffic flow and goods movement between Los Angeles, San Bernardino and Riverside counties.
  • Interstate 5 Corridor Improvement Project – A $3.2 billion project that will widen the roadway and add a carpool lane to reduce congestion and improve traffic flow for motorists and goods movement through Los Angeles and Orange counties.  
  • Interstate 710 Pavement Rehabilitation Project Closures – A $120 million project that will replace pavement and upgrade the median barrier providing enhanced safety along the route from the Los Angeles River Bridge to Interstate 10.

For more information on Caltrans projects in the area, go to You can also visit Caltrans’ main page at

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