PL23056101 – U.S. Army Corps of Engineers (USACE) Public Law 84-99 Emergency Repair of Sacramento River West Bank Levee System Site 0561-01

Solicitation PL23056101 is a forecast for emergency repair work to the Sacramento River West Bank Levee System Site 0561-01, located on the left bank of the Colusa Basin Drainage Canal in Colusa County, California. Carried out by the USACE Sacramento District and approved by the Central Valley Flood Protection Board, the project aims to restore the levee to pre-flood conditions following storm damage from March and April 2023. The work is conducted under Public Law 84-99 and is statutorily exempt from CEQA under Public Resources Code Section 15269 (a) due to its status as an emergency project. The scope of work involves excavating slumped material to approximately 3 feet below the failure plane and reconstructing the levee slope using a combination of existing or imported material. Technical specifications require the excavation to be benched and new engineered fill to be keyed-in to the existing slope to ensure a secure bond, following an approximate 2H:1V slope that matches pre-construction and adjacent slopes. No subsurface dewatering is required to meet compaction standards. The project is managed by the USACE Sacramento District, with Jonathan Yau serving as the Readiness Branch Chief.