State Route 29/ State Route 221 Soscol Junction Improvement Project

2 Documents in Project


SCH Number
Lead Agency
Caltrans, District 4 - Bay Area/Oakland (California Department of Transportation, District 4)
Document Title
State Route 29/ State Route 221 Soscol Junction Improvement Project
Document Type
MND - Mitigated Negative Declaration
Project Applicant
California Department of Transportation (Caltrans)

Document Description
Note: Reference SCH# 2009072094. Caltrans, in partnership with the Napa Valley Transportation Authority (NVTA), proposes to reconfigure the existing intersection (Soscol Junction) of State Route (SR) 29 and SR 221 /Soscol Ferry Road in Napa County from a signalized intersection to a full diamond interchange, with two roundabout intersections on either side of SR 29. This proposed project is to improve traffic operations to alleviate congestion between Napa Valley and towards Interstate 1-80 and Route 37. Bicycle, and pedestrian access is proposed to improve connectivity between existing bicycle and pedestrian access on 29 and 221.

Contact Information
Cindy Fong
California Department of Transportation (Caltrans)
111 Grand Avenue
Oakland, CA 94612

Phone : (510) 286-6454


State Highways
29 & 221

Notice of Completion

Review Period Start
Review Period End
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Noise Population/Housing Balance Public Services Recreation/Parks Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Wetland/Riparian Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
Cal Fire California Air Resources Board California Department of Parks and Recreation California Highway Patrol California Native American Heritage Commission California Regional Water Quality Control Board, San Francisco Bay Region 2 Central Valley Flood Protection Board Delta Protection Commission Office of Historic Preservation Resources Agency San Francisco Bay Conservation and Development Commission State Water Resources Control Board, Division of Water Quality California Department of Fish and Wildlife, Bay Delta Region 3


Environmental Document
28120_Draft DED_20191609   PDF 33840 K Summary Form   PDF 114 K
NOC   PDF 1325 K
State Comments
2019099072_CDFW_SR 29-221 Soscol Junction Improvement Project-SCH2019099072-Fong-STANLEY101619   PDF 2446 K

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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