Santa Clara and Alameda Counties, CA

I-680 Northbound Sunol Express Lanes

The I-680 Northbound Sunol Express Lanes will be constructed in phases and includes widening 15 miles of freeway, pavement rehabilitation, 64 overhead sign structures, new auxiliary lanes, 14 bridge modifications, bridge rehabilitation, 45 new retaining walls, sound wall replacement, extensive safety lighting, ramp metering modifications, and an integrated electronic toll collection system. Right-of-way requirements include 13 property acquisitions, and utility relocations. A continuous access express lane facility is proposed and will be operated and enforced in consistence with the other express lane projects in the Bay Area Regional Express Lane network.

Notably, the PID document was approved in 9 months; EIR (CEQA) / complex EA (NEPA) document was approved in 33 months; and PS&E for Phase 1 was completed in 15 months.

The WMH Team received commendations from Alameda CTC staff and elected officials for the tremendous commitment to deliver this vital project under an accelerated schedule.




California Department of Transportation


Alameda County Transportation Commission