North Sonoma Mountain Vehicle Bridge

5 Documents in Project


SCH Number
Lead Agency
Sonoma County
Document Title
North Sonoma Mountain Vehicle Bridge
Document Type
NOD - Notice of Determination

Document Description
The project is limited to the removal of n existing wooden bridge and demolition of its concrete abutments. A new bridge, with abutments located outside the top of bank, will be constructed within the same alignment. Prior to demolition, a coffer dam and bypass pipe will be put in place to bypass stream flow through the project site. The existing deck, railing and girders will then be removed. The concrete abutments will be demolished to an elevation slightly below stream grade. The streambank will then be graded to a 2:1 slope and armored with approximately 12-cubic yards of 1/2-ton riprap from the keyway along the toe of slope up to the new abutment location on each side. Cast in place concrete piers and abutments will then be poured for the new bridge. A 40-foot long refurbished railcar deck will then be placed on the abutments. The new bridge will increase the stream capacity at the location, and no tree removal will be required. The California Department of Fish and Wildlife is executing a Lake and Streambed Alteration Agreement Number 1600-2014-0298-3 pursuant to Section 1602 of the Fish and Game Code to the project Applicant, Sonoma County Regional Parks.

Contact Information
Adam McKannay
CDFW Bay Delta Region
7329 Silverado Trail
Napa, CA 94558

Phone : (707) 944-5534


Santa Rosa
Cross Streets
Sonoma Mountain Road, Bennett Valley Road
Total Acres
Matanzas Creek; South Fork Matanzas Creek

Notice of Determination

Approving Agency
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
2300 County Center Drive #120A, Santa Rosa, CA 95403 Karen Davis-Brown, 707-565-1359


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA

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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