Keeping Orange County Moving Today and Tomorrow



Freeways First

  Improving traffic flow on Orange County’s freeways was the first order of business and freeway widening projects formed the cornerstone of Measure M. The Orange Freeway (SR-57) was Measure M’s first project in 1991. The freeway was expanded from six to eight lanes and was completed in 1992, one year ahead of schedule and $16 million under budget. The El Toro Y, Orange County’s notorious bottleneck where Interstates 405 and 5 meet, was Measure M’s next challenge. This project was completed in 1997, expanding the I-5/I-405 Interchange to 26 lanes at its widest point. Next, the Costa Mesa Freeway (SR-55) grew from 8 to 10 lanes, the Santa Ana Freeway (I-5) expanded from 6 to 10 lanes north of the SR-22 and from 8 to 10 lanes south of the El Toro Y, and the Riverside Freeway (SR-91) widened from 6 to 8 lanes.
Photo of freeway