Trancas Street Bridge Scour Repair Project

4 Documents in Project

Summary

SCH Number
2010032054
Lead Agency
Napa, City of (City of Napa)
Document Title
Trancas Street Bridge Scour Repair Project
Document Type
NOD - Notice of Determination
Received

Document Description
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
1600 First Street
Napa, CA 94559

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 Determination

Approving Agency
City of Napa
Approving Agency Role
Lead Agency
Approved On
Final EIR Available Location
1600 First Street, Napa CA 94559

Determinations

(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A Statement of Overriding Considerations was adopted for this project
No
(5) Findings were made pursuant to the provisions of CEQA
No
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