The OC Go freeway program includes 30 project segments that will remedy traffic chokepoints and relieve congestion on Orange County freeways. To date, 12 freeway segments have been completed and three more are in construction during 2019.
I-405 Improvement Project
This nearly $2 billion project will improve 16 miles of the I‐405 in both directions between SR-73 and I-605 through the cities of Costa Mesa, Fountain Valley, Garden Grove, Huntington Beach, Los Alamitos, Seal Beach, and Westminster. The project will add one regular lane in each direction between Euclid Street and I-605 and make improvements to freeway entrances, exits and bridges. Also, the project will add the 405 Express Lanes, incorporating the existing carpool lanes and a new lane in each direction between SR-73 and I-605.
During 2019, OCTA continued replacing and reconstructing street crossings with wider bridges along the project corridor. With 12 bridges under construction, the Slater Avenue bridge was the first to be completed and opened to traffic on August 30, 2019. The general purpose lane portion of the project is funded by OC Go with a combination of local, state and federal funds. The 405 Express Lanes are separately funded and will be paid for by those who choose to pay a toll and use them.
As of December 2019, the project was approximately 40 percent complete and is anticipated to be finished in 2023.
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I-5 (SR-73 to El Toro Road) Widening Project
From SR-73 to El Toro Road, OCTA and Caltrans are working together to implement the I-5 Widening Project to address traffic volume, which is anticipated to increase 25 percent by 2045.
Located adjacent to the cities of Mission Viejo, Lake Forest, Laguna Hills and Laguna Niguel, this nearly $600 million freeway improvement project will be built in three segments and includes numerous roadway, structural and operational improvements.
Construction of the middle segment (Oso Parkway and Alicia Parkway), which includes reconstruction of the La Paz Road interchange, began in 2019 and as of December 2019, was 13 percent complete. In addition, the construction contract was awarded for the southernmost segment (SR-73 to Oso Parkway) on December 20, 2019. Construction on the northern section (Alicia Parkway to El Toro Road) is expected to begin in 2020.
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I-5 (SR-55 and SR-57) Project
In partnership with Caltrans, OCTA is adding a second high occupancy vehicle lane in both directions along I-5 between SR-55 and SR-57 to relieve traffic congestion, alleviate bottlenecks and improve traffic operations on this corridor within the cities of Santa Ana, Orange and Tustin. Major construction activities continued in 2019, including the demolition of the HOV direct ramp bridge at Main Street. As of December 2019, the project was approximately 45 percent complete and is anticipated to be complete in 2021.
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Next 10 Delivery Plan: 2019 Update
This comprehensive and balanced plan was developed to ensure that the promises made in the OC Go Investment Plan can continue to be delivered in concert with changes in economic conditions and revenue projections. In 2019, the Next 10 Delivery Plan review incorporated OCTA’s strong revenue position, combined with efficient project delivery performance, to advance five additional OC Go freeway projects through construction. By 2028, nearly 90 percent of the total number of freeway projects (26 out of 30) will be finished. The remaining four will be completed by 2041.
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