B01 - DRAFT Specifications 2603 LAR C3B North - 20260923.pdf

This is a draft specifications document for a design-bid-build construction project along the Lower American River in Sacramento, California. The project, designated LAR C3B (Contract 3B), is a continuation of erosion reduction efforts under the American River Common Features (ARCF) program, following the completion of LAR Contract 3A awarded under USACE contract W9123824C0014. The work spans approximately 1.8 miles along the North bank of the Lower American River from Howe Avenue upstream to near Harrington Way, encompassing Sites 3-1 and 4-2.

The construction scope includes excavation and embankment regrading; installation of soil-filled rock slope protection along the waterside levee face; construction of buried launchable rock toes and launchable overbank trenches; development of planting benches integrated with instream woody material; import and placement of riprap; structural tie-ins with existing rock revetment features; and temporary site stabilization across disturbed areas. The Government estimates the project can be constructed within 480 calendar days from the Contractor's receipt of Notice to Proceed, with anticipated completion in late Spring through Fall 2027 and continuing into 2028. In-water work is limited to July through October annually. The contracting activity is the Department of the Army Corps of Engineers Sacramento District (USACE SPK), and the solicitation number is W9123827BA001.