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OCTA assists with planning and funding freeway improvements, while Caltrans constructs and maintains the freeways. Improvement projects on the Santa Ana (I-5), Riverside (SR-91), Orange (SR-57) and Costa Mesa (SR-55) freeways have been completed. The Garden Grove Freeway (SR-22) Improvement Project and I-5 Gateway Project is underway.
Click a Freeway Below to Find Out More: