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
Present Land Use
Community Commercial (western bank adjacent to Napa River)

Document Description
Note: Recirculation The proposed project consists of placing riprap around Pier No. 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 footing. The riprap would be 2 ft 6 in 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-foot-deep cutoff trench would be excavated around 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 an approximately 400-foot-long 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
Mark Andrilla
City of Napa Public Works Department
Lead/Public Agency
1600 First Street P.O. Box 660
Napa, CA 94559

Phone : (707) 257-9423

Location

Coordinates
38°19'31"N 122°17'05"W
Cities
Napa
Counties
Napa
Cross Streets
Trancas St and Soscol Ave
Zip
94558
Total Acres
1.5
Parcel #
038-190-020
State Highways
Hwy 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

Review Period Start
Review Period End
Development Type
Other (public safety-bridge scour repair)
Local Action
Grading/building
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
Reviewing Agencies
California Air Resources Board (ARB) California Department of Fish and Wildlife, Bay Delta Region 3 (CDFW) California Department of Parks and Recreation California Department of State Parks, Division of Boating and Waterways 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

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.

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