Trancas Street Bridge Scour Repair Project
4 Documents in Project
Summary
SCH Number
2010032054
Lead Agency
City of Napa
Document Title
Trancas Street Bridge Scour Repair Project
Document Type
MND - Mitigated Negative Declaration
Received
Document Description
The Trancas Street Bridge scour repair project consists of placing riprap around Pier Number 3 of the Trancas Street Bridge due to erosion at the base of the pier. Activities would involve placement of large rocks (loose riprap) to cover the top of the Pier Number 3 footing. The riprap would be 2 ft 6 inches deep with an apron outside of the pier footing that would slope downward toward the ebb and flow direction of the Napa River. A 5 ft deep cutoff trench would be excavated arounf the perimeter of the riprap and filled with rock to minimize the potential for future undermining of the riprap and pier. The needed repairs would require dewatering of a portion of the river, and a 400 ft long and 8 ft wide construction access road would be extended from an existing gravel road located north of the bridge and into the river from the west bank.
Contact Information
Name
Herb Fredricksen
Agency Name
City of Napa Public Works Department
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Napa
Counties
Napa
Cross Streets
Trancas St and Soscol Ave
Zip
94558
Total Acres
0.6
Parcel #
038-190-020
State Highways
121, 29
Railways
Napa Valley
Schools
Napa HS, Redwood MS
Waterways
Napa River, Redwood Creek, Napa Creek, Milliken Creek
Township
6N
Range
4W
Section
unsect
Base
Napa 7.5
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 4 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, San Francisco Bay Region 2 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Department of Water Resources, Resources Agency, California Department of State Parks, Division of Boating and Waterways
State Reviewing Agency Comments
California Department of State Parks, Division of Boating and Waterways
Development Types
Other (public safety-bridge scour repair)
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Flood Plain/Flooding, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Transportation, Vegetation, Wetland/Riparian, Wildfire, Greenhouse gas
Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.