Caltrans District 12, in cooperation with OCTA, proposes the construction of Interstate 5 Improvement Project, between Interstate 405 and Yale Avenue. The proposed project is located in Orange County on I-5 and traverses through the City of Irvine. The proposed project limits cover a distance of a 4.5 mile corridor. The Environmental Document and Project Report were approved on January 7, 2020. The final design phase for this project is scheduled to be complete in mid2025 and contract documents are being developed for the constructionbidding phase to occur in late-2025. The OCTA is expecting funding for the construction support and capital phase of the project from Measure M2 funds. As the implementing agency OCTA contracted with AECOM Technical Services to prepare the final design Plans, Specifications, and Estimates (PS&E) for this project. Caltrans provided oversight up to the completion of the PS&E phase. Caltrans will be the lead agency during the construction phase and will administer the contract for the construction phase. 1.3-2 Location and Limits The I-5 Improvement Project between Interstate 405 and Yale Avenue is located in the City of Irvine. The total length of this project is 4.5 miles. 1.3-3 General Project Description The I-5 Improvement Project, between Interstate 405 and Yale Avenue, will add an additional General Purpose lane in both directions on the freeway, reestablish auxiliary lanes on the freeway and realign on- and off-ramps throughout the corridor. The project construction will be in accordance with the Caltrans approved PS&E documents for project EA# 12-0K61U4.