Octa's transportation blog

SR-55 Improvements Will Relieve Congestion in Irvine, Santa Ana & Tustin

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.

Funded by OC Go (also known as Measure M), the $411 million project is expected to be completed in 2024 and will add one regular lane and one carpool lane in each direction of SR-55 through the cities of Irvine, Santa Ana and Tustin, along with auxiliary lanes between interchanges.

The project’s final design was submitted to Caltrans late last month, and right-of-way, utility relocation coordination and public outreach activities are ongoing. Learn more here.

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