Marsh Creek Road Bridge 142 Wingwall Repair Project


SCH Number
Lead Agency
Fish & Wildlife 3 (Napa) (California Department of Fish and Wildlife, Region 3)
Document Title
Marsh Creek Road Bridge 142 Wingwall Repair Project
Document Type
NOE - Notice of Exemption

Document Description
Project is limited to the repair and replacement of two wing-walls at Bridge #142 on Marsh Creek Road. The southeast wingwall will be demolished and replaced with a new wing-wall; 30 feet long, and a gradual height variance of zero to 16 feet. The wall will be comprised of pre-cast concrete lagging supported by 5 soldier piles, each pile will consist of a 30 inch diameter hole drilled 25 to 38 feet into the creek bed, each hole will have a steel section inserted and be backfilled with concrete. The completed wingwall will be connected to an existing box culvert with a joint dowel and will be armored with 308 sq. ft. of rock slope protection. The northwest wingwall will be secured using 2 steel beams held in place by 3 soil nails, extending 35 feet into the slope. De-watering shall occur 40 feet upstream and 65 feet downstream using 2 cofferdam structures. T he Project will result in the removal of 4 native tree species. Issuance of a Streambed Alteration Agreement No. 1600-2014-0051-R3 is pursuant to Fish and Game Code Section 1602.

Contact Information
Robert Stanley
California Department of Fish and Wildlife, Region 3
7329 Silverado Trail
Napa, CA 94558

Phone : (707) 944-5573


Contra Costa

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S:15301, Class 1
Reasons for Exemption
Existing Facilities.

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 or via phone at (916) 445-0613.

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