I-680 Sunol Northbound Express Lane Project
The I-680 Sunol Northbound Express Lane project will add a carpool/express lane in the northbound direction on I-680 from south of State Route 237 (SR 237) to north of SR 84 (approximately 15 miles), within Santa Clara and Alameda Counties in and near the cities of Milpitas, Fremont, Pleasanton, and the community of Sunol. The project will increase the efficiency of the transportation system by expanding and optimizing freeway capacity to reduce congestion and accommodate existing and future travel demands.
This overall project will be implemented in two phases. Phase 1 of the project will complete design and construction of a 9-mile segment between south of Auto Mall Parkway and State Route 84. Project approval and environmental clearance were completed in summer 2015. Final design of Phase I is complete. The Phase I construction contract was awarded in late November 2017. Construction begins early 2018.
Read the final Environmental Impact Report/Environmental Assessment (EIR/EA), approved July 2015.
The Draft EIR/EA is available online (see links below):
The Draft EIR/EA is also available on the Caltrans website and at the following locations during business hours:
Two public hearings were held to provide an opportunity for the public to comment on the document and project:
Wahida I. Rashid, Associate Transportation Planner
As part of the planning process, two public scoping meetings were held in Fremont and Pleasanton in October 2012 to solicit comments on the scope of environmental studies being conducted for the project. The 2012 public notice of preparation for a draft Environmental Impact Report/Environmental Assessment for the I-680 Northbound HOV/Express Lane Project was made available in 2012:
Get updates about the I-580 and I-680 Sunol Express Lanes.