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Caltrans Begins Project to Unlock I-5 Traffic Delays

Shovels go into the ground for the start of an $86 million project.

Thu June 13, 2013 - West Edition
Construction Equipment Guide

Caltrans put shovels in the ground Feb. 20 on a project that will bring much-needed improvements to a major interchange in San Juan Capistrano, while creating a new gateway to the historic downtown area.

The $86 million project will replace the existing I-5/Ortega Highway interchange and increase the traffic-carrying capacity of the bridge over the freeway.

“These improvements will relieve congestion at one of Orange County’s busiest traffic chokepoints, making driving much less stressful for motorists,” said Caltrans Director Malcolm Dougherty.

The existing on- and off-ramps at the interchange will also be widened, a new northbound I-5 on-ramp from the Ortega Highway will be built, and the highway will be realigned to reroute westbound drivers from Ortega onto Del Obispo Street.

Since 2004, the average daily traffic volume at the intersection has risen from 71,000 to nearly 100,000.

The project, which is expected to take two years to complete, is a partnership between Caltrans, the Orange County Transportation Authority (OCTA) and the city of San Juan Capistrano. It is funded by the State Transportation Improvement Program ($47 million); Proposition 1B ($31 million); OCTA’s Measure M; San Juan Capistrano ($4 million); and Orange County ($4 million).

“We are very pleased to partner with the state, county and city on a project that will bring significant relief to those who live, work and visit San Juan Capistrano,” said OCTA Chairman Greg Winterbottom. “Improving Ortega Highway is another positive example of government at all levels working together toward a common goal.”

Along with the traffic benefits, more landscaping will be planted to attract visitors to historic San Juan Capistrano.

“Ten years in the planning, the start of the I-5/Ortega Highway Interchange Project is finally here,” said San Clemente Mayor John Taylor. “It will transform the flow of traffic on and off the freeway. When completed, San Juan Capistrano will have a new entrance to our historic city.”

For more information and to sign up to receive construction alerts, visit or find the project on Facebook and Twitter at and @OrtegaHighway.

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