Interstate 680 Northbound Express Lane Completion Project

2 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 4 (DOT)
Document Title
Interstate 680 Northbound Express Lane Completion Project
Document Type
EIR - Draft EIR
Present Land Use
Document Description
The California Department of Transportation (Caltrans), in partnership with the Contra Costa Transportation Authority (CCTA), presents the Interstate 680 (I-680) Northbound Express Lane Completion Project to improve corridor-wide congestion, travel delays, and operational challenges. The project would construct a northbound express lane from Livorna Road to State Route (SR-) 242 and convert the existing northbound High Occupancy Vehicle (HOV) Lane from SR-242 to north of Arthur Road near Martinez to an express lane – which means both HOV and single-occupancy drivers who pay a toll can use the lane. The project has four build alternatives (Alternative 1C, 2, 3, and 5) and one no-build alternative.

Contact Information

Wahida Rashid
Agency Name
Caltrans District 4
Job Title
Branch Chief
Contact Types
Lead/Public Agency / Project Applicant


Alamo, Concord, Danville, Martinez, San Ramon, Walnut Creek
Contra Costa
Countywide, Northern California, San Francisco Bay Area
Cross Streets
Livorna Road to SR-242/ SR-242 to Benicia-Martinez Bridge Toll Plaza
State Highways
I-680, SR-242
Buchanan Field Airport
Other Location Info
Between postmile realignment 10.7 at the southern limit to postmile 23.1 at the northern limit.

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), California Transportation Commission (CATC), Delta Protection Commission, Delta Stewardship Council, Department of Toxic Substances Control, Office of Historic Preservation, San Francisco Bay Conservation and Development Commission (BCDC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights
Development Types
Transportation:Highway/Freeway (Express Lane)
Local Actions
Other: Transportation
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Economics/Jobs, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Noise, Public Services, Recreation, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian
Local Review Period Start
Local Review Period End


Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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