The following is a press release from an organization unaffiliated with Voice of OC. The views expressed here are not those of Voice of OC.

Credit: THY VO, Voice of OC

Joel Zlotnik (714) 560-5713
Eric Carpenter (714) 560-5697


March 28, 2016

Significant Milestone Reached in I-405 Project

Set for completion in 2022, improvements will reduce travel times by adding one regular lane in each direction, along with express toll lanes 

ORANGE – The Orange County Transportation Authority is seeking proposals from a shortlist of firms for the design and construction of the I-405 Improvement Project, an important step toward building a better freeway that will improve travel times for everybody driving the corridor between Costa Mesa and the Los Angeles County line.

The OCTA Board of Directors at its Monday meeting unanimously approved the criteria for selecting a firm to design and build the freeway improvements, and it approved issuing the final request for proposals.

The $1.7 billion project will improve commute times on the San Diego Freeway (I-405) from the SR-73 to the I-605, an area traveled by more than 370,000 vehicles a day, making it the busiest stretch of highway in the nation.

The project, set to begin construction in 2017, includes adding one regular general-purpose lane in each direction – as promised in Measure M – and building express toll lanes.

The design-build firms shortlisted because of their qualifications for the project are:

  • OC 405 Partners
  • Shimmick-Tutor Perini
  • Skanska-Flatiron

Once submitted by the firms, OCTA staff will evaluate the proposals to determine which one offers the best value to OCTA in terms of price and technical merit. The OCTA board is scheduled to approve the selection of the design-build team in November.

The Measure M project, being constructed in cooperation with Caltrans, will be funded by a combination of local, state and federal funds, with the toll lane portion of the project financed and paid for by those who choose to pay a toll and use the 405 Express Lanes.

The design-build model for delivering the project will save time and money.

The 405 Express Lanes are intended to benefit all people who use the I-405. In 2040, it’s expected to take 29 minutes to travel during rush hour from SR-73 to I-605 in the general-purpose lanes. That commute can be reduced to 13 minutes if a driver chooses to take the Express Lanes. If the project only constructed the general-purpose lanes in each direction and not the Express Lanes, the commute in the general-purpose lanes or regular high-occupancy-vehicle lanes would take almost an hour to travel the same stretch.

The project is expected to be completed in 2022.

For more information, visit

Voice of OC posts press releases to provide readers with information directly from organizations. We do not edit or rewrite press releases, and encourage readers to contact the originator of a given release for more information. To submit a press release email

Since you've made it this far,

You are obviously connected to your community and value good journalism. As an independent and local nonprofit, our news is accessible to all, regardless of what they can afford. Our newsroom centers on Orange County’s civic and cultural life, not ad-driven clickbait. Our reporters hold powerful interests accountable to protect your quality of life. But it’s not free to produce. It depends on donors like you.

Join the conversation: In lieu of comments, we encourage readers to engage with us across a variety of mediums. Join our Facebook discussion. Message us via our website or staff page. Send us a secure tip. Share your thoughts in a community opinion piece.

Leave a comment

Your email address will not be published. Required fields are marked *