Octa's transportation blog

OC Go Funding Signs Debut on I-405 Improvement Corridor

In early March, new signs along the I-405 between SR-73 and I-605 marked the start of construction on OCTA’s biggest freeway project and the public debut of OCTA’s rebranded sales tax. OC Go is the new name of Measure M, Orange County’s half-cent sales tax for transportation improvements.

The five signs provide funding and completion date information for the I-405 Improvement Project, which will add one regular lane in each direction between Euclid Street and I-605 and make improvements to freeway entrances, exits and bridges. Constructed in cooperation with Caltrans, 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. The 405 Express Lanes will give solo drivers the choice to speed up their commute for a toll and give options for carpoolers to use the lanes for free.

The $1.9 billion project will be funded through a combination of local, state and federal funds, with $1.135 million coming from OC Go. The express lanes portion of the project will be paid by those who choose to pay a toll and use the 405 Express Lanes.

For more information about the I-405 Improvement Project, visit here

Additional OC Go signs will be posted in support of other improvement projects.