Interstate 680/Sunol Boulevard Interchange Improvements Project


SCH Number
Lead Agency
California Department of Transportation, District 4 (DOT)
Document Title
Interstate 680/Sunol Boulevard Interchange Improvements Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Retail/Highway/Service Commercial Business and Professional Offices, Low Density Residential, Public Health and Safety, Parks and Recreation
Document Description
The California Department of Transportation (Caltrans), in coordination with the City of Pleasanton, proposes to modify the Interstate 680 (I-680)/Sunol Boulevard interchange and adjacent intersections in the City of Pleasanton and unincorporated Alameda County (project). The proposed project would modify intersection traffic controls and lane striping, increase ramp storage, and improve pedestrian and bicycle facilities in the interchange area. The project area is along I-680 from the Sunol Boulevard interchange (Post Mile [PM] R15.5) to 0.5 mile south of the interchange (PM R14.8), and along Sunol Boulevard from the Arlington Drive intersection to the Castlewood Drive/Pleasanton-Sunol Road intersection.

Contact Information

Daniel Chan
Agency Name
California Department of Transportation, District 4
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency


Citywide, Countywide, San Francisco Bay Area
Cross Streets
Sunol Blvd, Arlington Dr, Castlewood Dr, Pleasanton Sunol Rd
State Highways
Arroyo de la Laguna

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 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 Transportation Commission (CATC), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water
Development Types
Transportation:Other (Interchange improvements)
Local Actions
Transportation Project
Project Issues
Aesthetics, Air Quality, Biological Resources, Cultural Resources, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Noise, Public Services, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire
Local Review Period Start
Local Review Period End


Notice of Completion [NOC] Transmittal form

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