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Notice of Intent to Adopt a Mitigated Negative Declaration for the Wallace Weir Fish Rescue Facility Project

Reclamation District (RD 108), acting as the California Environmental Quality Act (CEQA) lead agency, has made available for public review and comment an Initial Study and proposed Mitigated Negative Declaration for the Wallace Weir Fish Rescue Facility Project.

The proposed project consists of constructing a permanent earthen weir that will be hardened to withstand winter flood floods to prevent adult salmon entry into the Colusa Basin Drain (CBD).  A fish rescue facility will be incorporated into the weir so fish that arrive at the Wallace Weir via the Yolo Bypass can be safely and effectively rescued and returned to the Sacramento River to resume their migration to upriver spawning grounds. An inflatable dam and positive fish barrier will also be incorporated into the new weir structure to better control water releases and fish attraction flows through the weir while blocking fish passage. The Wallace Weir Fish Rescue Facility is located at the confluence of the Yolo Bypass and the Knights Landing Ridge Cut, approximately 6 miles southeast of the town of Knights Landing, 4 miles northwest of the Sacramento International Airport and 4 miles northeast of the city of Woodland, in Yolo County.

The Wallace Weir is a temporary 450-foot long earthen berm installed to create an irrigation backwater. This temporary berm blocks fish passage until it is compromised by flood flows each year. Once the weir is compromised fish have free passage into the CBD via the Ridge Cut and there are no upstream return routes to the Sacramento River and absent fish rescue operations, the fish perish and are lost from production. The Wallace Weir Fish Rescue Facility will complement the Knights Landing Outfall Gate (KLOG) Fish Barrier Project completed in 2015 by RD 108.

Construction of the proposed project would occur over 12 weeks in the late summer/early fall of 2016. No known hazardous waste sites exist in the project area.

The Wallace Weir Fish Rescue Facility Project Initial Study and proposed Mitigated Negative Declaration (IS/MND) is available for review from April 8, 2016, to May 10, 2016, and may be viewed at the following locations:

  • RD 108: 975 Wilson Bend Road, Grimes, CA 95950
  • online at www.rd108.org/wallaceweir.

Lead Agency Contact: Questions, comments, or requests for digital or physical copies may be directed to Mr. Gregg Ellis by email at Gregg.Ellis@icfi.com, at ICF International, 630 K Street, Suite 400, Sacramento, CA 95814, or at (916) 737-3000.

Below is a link to the CEQA Notice of Intent to Adopt a Mitigated Negative Declaration Declaration and Initial Study and  for the Wallace Weir Project.

 Wallace Weir Fish Rescue Facility Notice of Intent and Initial Study