I-5/Sperry Avenue Interchange Project

I-5/Sperry Avenue Interchange Project | Patterson, CA - Official Website

I-5/Sperry Avenue Interchange Project | Patterson, CA - Official Website Project Details This project is currently in the design phase. The project involves converting the I-5 SB and I-5 NB on/off ramps at Sperry Avenue to signal control with split phasing sequence. The geometry proposed involves modifying the I-5 SB ramps intersection to include an exclusive left and a shared left, through and right lane at the southbound off ramp, an exclusive left lane and a shared left and through lane at the westbound approach and two through lanes with a shared right turn lane at the eastbound approach. At the I-5 NB Ramps intersection, the lane geometry modification involved providing a shared left and through lane and two exclusive right turn lanes at the northbound off ramp, two through lanes and an exclusive right turn lane with a right turn channelized island at the westbound approach and a shared left and through lane and exclusive through lane at the eastbound approach. Sperry Avenue will be modified to a four-lane roadway (east-west bound) requiring the existing 2-lane bridge over the California Aqueduct to be widened to four-lanes by adding an additional lane on either side of the existing bridge. The outer abutments to accommodate the proposed two additional bridge lanes are existing. The Sperry Road/Rogers Road intersection is currently being modified to provide an exclusive left turn lane, a shared left and right turn lane and an exclusive right turn lane for the southbound approach. The eastbound approach will be modified to provide two exclusive left turn lanes and two through lanes and the westbound approach will be provided to provide two through lanes with a shared right turn lane. This work is being constructed by private development to extend Rogers Road south of Sperry Avenue and will be completed prior to this project starting construction. Project Status Due to funding constraints, the project is being delivered in phases. Phase 1 is currently in design and is approximately 90% complete. This phase focuses on addressing immediate traffic and safety needs by: Installing traffic signals at the interchange. Adding a second left-turn lane at the southbound I-5 on-ramp. Structure work at the interchange The City of Patterson is working closely with Caltrans and Stanislaus County to advance the project and is actively pursuing grant funding to construct Phase 1 and future improvements. Funding Sources: TBD