OCTA, in cooperation with Caltrans, is improving 4 miles of SR-55 between I-405 and I-5. The project will improve traffic flow and reduce travel time by adding one regular lane and one carpool lane in each direction.

SR-55 is a vital north-south freeway that links central Orange County and beyond to the coastal region. More than 260,000 vehicles use this stretch of SR-55 every day, and that number is expected to grow to nearly 275,000 vehicles by 2040.

The Costa Mesa (SR-55) Freeway is one of the most heavily congested freeways in Southern California, and future demand is only expected to increase congestion. This project proposes to improve mobility, help with traffic flow, and improve traffic operations.

SR-55 is a major north/south route connecting Orange County to Riverside and San Bernardino counties, and for accessing key business centers, John Wayne Airport and the beach cities. The $475.1 million Project is funded by OC Go (also known as Measure M), as …

Expected to break ground in 2021, the SR-55 Improvement Project will reduce travel times between I-405 and I-5 through one of the most highly congested stretches of freeway in the county.

Caltrans and OCTA are proposing improvements to the I-405 between I-5 and SR-55 to address freeway congestion and make travel more efficient.

The $475.1 million project adds one regular lane and one carpool lane in each direction of SR-55 between I-405 and I-5, improving mobility and reducing congestion for motorists. Completion is expected in 2026.

To address current and future traffic demand, the Orange County Transportation Authority (OCTA), in partnership with the California Department of Transportation (Caltrans), is improving I-5 from north of Interstate 405 (I-405) to State Route 55 (SR-55).

2022年8月3日 · SR-55 is a vital north-south freeway that links central Orange County and beyond to the coastal region. More than 260,000 vehicles use that stretch of SR-55 every day, and that number is expected to grow to nearly 275,000 vehicles by 2040.

The project will add one regular lane and one carpool lane in each direction of SR-55 between I-405 and I-5, improving mobility for commuters within Orange County. In addition, the project will add merge lanes between interchanges.