Napa River/Napa Creek Flood Protection Project – Floodwalls North of the Bypass (California Endangered Species Act Incidental Take Permit No. 2081-2024-047-03 (
17 Documents in Project
Summary
SCH Number
1997044002
Lead Agency
Napa County Flood Control and Water Conservation District
Document Title
Napa River/Napa Creek Flood Protection Project – Floodwalls North of the Bypass (California Endangered Species Act Incidental Take Permit No. 2081-2024-047-03 (
Document Type
NOD - Notice of Determination
Received
Posted
3/23/2026
Document Description
The California Department of Fish and Wildlife (CDFW) has issued an ITP (No. 2081-2024-047-03), pursuant to Section 2081(b) of the Fish and Game Code, to Napa County Flood Control and Water District.
The Project includes the development of 19.76 acres of developed and undeveloped land into various flood control and associated structures. Project activities include the construction of floodwalls, an outfall, and associated structures at the Dry Bypass; the installation of rock scour protection around existing Lincoln Avenue Bridge (bridge) piles; the installation and removal of temporary work and access structures at the bridge; and the construction of floodwalls and portions of an adjacent pedestrian trail, including installation of gates and replacement of eight outfalls and other pipes at the Napa River Floodwalls Dewatering and in-water work will occur at the Dry Bypass and Lincoln Avenue Bridge, respectively. No pile driving will occur during the Project.
All staging will occur on uplands and construction access will occur from existing surface streets.
The Project will result in impacts to 0.685 acres of longfin smelt (Spirinchus thaleichthys) and Delta smelt (Hypomesus transpacificus) habitat including temporary impacts to 0.641 acre; the Project will permanently remove 0.044 acre of longfin smelt and Delta smelt habitat. The project is expected to result in incidental take of longfin smelt, which is designated as a threatened species under the California Endangered Species Act (CESA) and Delta smelt, which is designated as an endangered species under CESA. The ITP referenced above as issued by CDFW authorizes incidental take of species listed under CESA that may occur as a result of Project implementation.
Contact Information
Name
Nick Wagner
Agency Name
CA Department of Fish and Wildlife
Job Title
Senior Environmental Scientist (Specialist)
Contact Types
Responsible Agency
Phone
Name
Richard Thomasser
Agency Name
Napa County Flood Control and Water District
Job Title
District Manager
Contact Types
Lead/Public Agency
Address
Phone
Location
Coordinates
Cities
Napa
Counties
Napa
Regions
San Francisco Bay Area
Township
5N
Range
4W
Section
2
Other Location Info
The Napa River/Napa Creek Flood Protection Project – Floodwalls North of the Bypass (Project) is located along the Napa River and Napa Creek in the City and County of Napa. The Project site is generally bounded by high density residential and commercial development to the east and west and the Napa River and associated riparian corridor to the north and south. The Project is located at the below three locations within Townships 5N and 6N, Range 4W, Sections 2, 3, 10, 34, and 35 of the Napa U.S. Geological Survey 7.5-minute quadrangle map:
• Dry Bypass, located along Napa Creek, within and adjacent to the Oxbow Commons between Soscol Avenue and the Napa Valley Railroad at approximately 38.301509°N, 122.283898°W.
• Lincoln Avenue Bridge, located along the Napa River, between the intersections of Lincoln Avenue and Tonbridge Way to the west and Lincoln Avenue and Silverado Trail to the east at approximately 38.310433°N, 122.278000°W.
• Napa River Floodwalls, on the right (west) bank of the Napa River between approximately 38.319653°N, 122.282540°W at the upstream end and 38.305477°N, 122.282658°W at the downstream end, then a gap, and another section along the Dry Bypass and Napa Creek between approximately 38.302629°N, 122.283176°W and 38.300176°N, 122.285343°W.
Notice of Determination
Approving Agency
CA Department of Fish and Wildlife
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Napa
Final Environmental Document Available at
The environmental impact report prepared by the lead agency for the Project is available to the general public at the office location listed above for the lead agency. CDFW’s administrative record of proceedings related to the incidental take permit is available to the public for review at CDFW’s regional office.
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
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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