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Tri-Valley Transportation Council │ 2020 Nexus Fee Update Study August 2021 │ Final 55 C-6 SUNOL/680 INTERCHANGE IMPROVEMENTS TVTC Project Sponsor: Pleasanton Project Description: This project will fund the design of the I-680 at Sunol Boulevard interchange improvement. This will include a Project Study Report (PSR) to establish a project scope and cost estimate, environmental documentation, and the preparation of plans, specifications, and estimates (PS&E). Status: Currently in PSR-PDS, PA&ED Phase anticipated Spring/Summer 2019 Cost and Funding Sources Cost (Millions) $16.60 Funding (Millions) Pleasanton TIF $2.00 Total Funding (Millions) $2.00 Total Funding Shortfall (Millions) $14.60 C-7 I-680 EXPRESS LANES – HWY 84 TO ALCOSTA TVTC Project Sponsor: Pleasanton/ACTC Project Description: This project will close the gap between existing and in-progress high-occupancy vehicle (HOV)/express lane projects to the north and south. The project extends for approximately nine miles on northbound I-680 through Sunol, Pleasanton, Dublin, and San Ramon. Status: Design and construction of this project is being rolled out in two phases—southbound (Phase 1) and northbound (Phase 2). Environmental and preliminary engineering studies are complete. Phase 1 final design work was initiated in February 2020 and construction for Phase 1 is anticipated to start in 2022. Cost and Funding Sources Cost (Millions) $527.57 Funding (Millions) Measures BB $20.00 Total Funding (Millions) $20.00 Total Funding Shortfall (Millions) $507.57 C-8 SANTA RITA/I-580 INTERCHANGE TVTC Project Sponsor: Pleasanton Project Description: This project will construct a 2nd southbound left turn lane from Santa Rita onto Pimilico Drive. The left turn vehicle queue length exceeds the length of the left turn pocket and blocks the #1 southbound lane, thus reducing the Level of Service. Status: This project has not been started.