This document provides details on a federal contract opportunity for construction work on the Sacramento River East Levee in California. The Army Corps of Engineers seeks a firm-fixed price contract for construction of approximately 1.8 miles of seepage cutoff walls along the levee using methods including soil-bentonite, slag cement-cement-bentonite, deep mix, and jet grouting. Additional scope includes utility relocations, railroad protection, relief well modifications, and contaminated soil handling. Work must be completed by December 2021 with levee reconstruction by September 2021. Bids are due by November 30, 2020 for this opportunity estimated between $25-100 million. Contractors must be on the Corps' Pre-Qualified Sources List for the included work features.