i-680/SR 4 Interchange Project - Phase 3 - Grayson Creek Bridge (Streambed Alteration Agreement No. 1600-2017-0559-R3)

8 Documents in Project

Summary

SCH Number
2006082017
Lead Agency
Caltrans 4 (Oakland) (California Department of Transportation, District 4)
Document Title
i-680/SR 4 Interchange Project - Phase 3 - Grayson Creek Bridge (Streambed Alteration Agreement No. 1600-2017-0559-R3)
Document Type
NOD - Notice of Determination
Received

Document Description
CDFW has executed Lake and Streambed Alteration Agreement No. 1600-2017-0559-R3, pursuant to section 1602 of the Fish and Game Code to the project Applicant, Contra Costa Transportation Authority, as represented by Timothy Haile. Project activities authorized through this Agreement are limited to installation of a temporary cofferdam and associated dewatering, replacement of the existing Grayson Creek Bridge with new abutments and a three-span cast-in-place (CIP/precast concrete box girder or precast girder structure, extension of the existing state highway and maintenance access road on the west side of the creek channel, placement of supporting rock slope protection, and drainage system modifications to accommodate the bridge widening. The new structure will be 257 feet long and 173.1 feet wide (1.09 acres), replacing the existing two bridges totaling approx. 257 feet long and 74 feet wide (0.47 acres), an increase of 0.63 acres.

Contact Information
Jeanette Griffin
CDFW
7329 Silverado Trail
Napa, CA 94559

209-234-3447

Location

Counties
Contra Costa
Cross Streets
at I-680/SR-4 interchange
State Highways
I-680/SR-4
Airports
Buchanan Field
Waterways
Pacheco Slough and Grayson Creek
Other Location Info
City/Nearest Community: Pacheco

Notice of Determination

Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
Final EIR Available Location
7329 Silverado Trail, 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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