Site 18A Culvert Replacement of and Fish Passage Enhancement Project (Lake or Streambed Alteration Agreement No. 1600-2015-0079-R2).

5 Documents in Project

Summary

SCH Number
2015042009
Lead Agency
Sacramento Area Flood Control Agency
Document Title
Site 18A Culvert Replacement of and Fish Passage Enhancement Project (Lake or Streambed Alteration Agreement No. 1600-2015-0079-R2).
Document Type
NOD - Notice of Determination
Received
Posted
10/30/2015
Present Land Use
American River Parkway - Floodplain Zone / Recreation / Waterway

Document Description
CDFW has executed lake and streambed alteration agreement no 1600-2015-0079-R2, pursuant to section 1602 of the fish and game code to the project applicant, Sacramento Area Flood Control Agency. The proposed project will include the following activities: Culvert Replacement: A new, larger cross-sectional area, steel plate or concrete arch culvert (approximately 10 to 12-ft wide opening) will connect the Site 18A flood basin more directly and openly to NEMDC/Steelhead Creek, and allow for more positive drainage and fish outmigration into NEMDC/Steelhead Creek and farther downstream to the Sacramento River. The existing culvert will be removed and the new arched culvert would be installed through the bike trail berm in the northwest corner of Site 18A. Swale Modifications: Fish rearing habitat will be enhanced and fish stranding reduced by improving connectivity between NEMDC/Steelhead Creek and the Site 18A floodplain habitats. Existing interior drainage swales would be graded to provide more relief in the micro topography to further enhance outflow gradients between the creek and the basin's vegetated floodplain habitat. Habitat Enhancement: To improve rearing habitat and refugia in the basin floodplain, additional seasonal wetlands plants and riparian scrub would be planted within the Site 18A basin. Enhancement efforts will provide cover and increase habitat variability. Growth rates and canopy cover of existing and proposed new riparian vegetation would be increased by deep-ripping the underlying root-restricting layer (Riverbank Formation) that has suppressed growth rates of trees planted since 1996. Denser, higher quality floodplain habitat and cover for fish will be created at the northwest corner of the Site 18A basin to concentrate and attract fish to the culvert drainage exit.

Contact Information
Juan Torres
CDFW
1701 Nimbus Road
Rancho Cordova, CA 95670

Phone : (916) 358-2951

Location

Coordinates
38°36'7.02"N 121°28'26.68"W
Cities
Sacramento
Counties
Sacramento
Cross Streets
Northgate Blvd / Del Paso Blvd
Zip
95815
Total Acres
14
Parcel #
274-0190-009, 020, 022, 035
State Highways
Hwy 160
Railways
UPRR
Schools
Twin Rivers / No. Sac / Sac
Waterways
NEMDC / Steelhead Creek, American River
Township
9N
Range
5E
Section
30
Base
MDB&M
Other Location Info
Natomas

Notice of Determination

Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
1701 Nimbus Road, Rancho Cordova, CA 95670

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 Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(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
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No

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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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