State Route (SR) 116/Green Valley Road Safety Improvements Project
Summary
SCH Number
2025110306
Lead Agency
California Department of Transportation, District 4
(DOT)
Document Title
State Route (SR) 116/Green Valley Road Safety Improvements Project
Document Type
NEG - Negative Declaration
Received
Present Land Use
Rural residential, agricultural, commercial, transportation
Document Description
The California Department of Transportation (Caltrans) proposes to improve the safety of SR 116 at the intersection of Green Valley Road in Sonoma County. SR 116 is a two-lane conventional highway, and the intersection is controlled by stop signs only on Green Valley Road in both directions of travel. This project discusses two build alternatives: a signalized intersection (traffic signals system) and a roundabout.
The signalized intersection proposes to realign and widen the SR 116 and Green Valley Road intersection. The roundabout proposes to construct a 180-foot-diameter roundabout shifted about 35 feet southwest of the existing intersection. Both build alternatives would improve safety for the traveling public by reducing the potential and severity of collisions at the intersection.
Contact Information
Name
Daniel Chan
Agency Name
California Department of Transportation (Caltrans), District 4
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
Graton, unincorporated area
Counties
Sonoma
Regions
Unincorporated
Cross Streets
Green Valley Road
Zip
95472
State Highways
State Route (SR) 116
Waterways
Atascadero Creek
Other Location Info
State Route 116 post mile (PM) 21.6 - R22.6 coordinates: 37°13'46.0"N 119°30'34.0"W
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), 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 Toxic Substances Control (DTSC), California Department of Transportation, District 4 (DOT), California Department of Water Resources (DWR), California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Transportation Commission (CATC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, California Regional Water Quality Control Board, North Coast Region 1 (RWQCB)
State Reviewing Agency Comments
California Regional Water Quality Control Board, North Coast Region 1 (RWQCB)
Development Types
Transportation:Other (Safety Improvements)
Local Actions
Transportation
Project Issues
Aesthetics, Agriculture and Forestry Resources, Biological Resources, Cultural Resources, Energy, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Mandatory Findings of Significance, Noise, Tribal Cultural Resources
Public Review Period Start
Public Review Period End
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
State Comment Letters [Comments from State Reviewing Agency(ies)]
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