Mississippi River Basin, Lock 19, Keokuk, IA, Nose Pier Replacement and Bulkhead Recesses

Project Title: Mississippi River Basin, Keokuk, IA, Lock 19 Nose Pier Replacement and Bulkhead Recess

See Section 01-11-00 of the Specifications for the Scope Of Work

Estimated Range: $25,000,000 - $100,000,000

Completion Days: 638 Consecutive Calendar Days, 973 Consecutive Calendar Days If Option 2 Is Awarded

NAICS Code: 237990 - Size Standard $45,000,000

Unrestricted - Lowest Price Technically Acceptable (LPTA)

Questions regarding this project shall be submitted via Projnet.

The US Army Corps of Engineers (USACE) Rock Island District has a requirement for a Nose Pier Replacement and Bulkhead Recess at Lock 19, Keokuk, IA. The work includes but is not limited to: a base bid and two options. The base bid extends the river wall monolith upstream and includes mobilization, hydrographic surveys, concrete removal above and underwater, mechanical dredging, underwater rock excavation, monolith extension using precast concrete segments and tremie concrete placement, checkposts and other appurtenances, fabrication of protection plate assembly, and electrical work. Option 1 constructs a bulkhead recess in the land wall and includes fabrication and installation of a cofferbox, concrete removal above and underwater, fabrication and installation of a bulkhead recess, concrete placement above and underwater, fabrication and installation a of protection plate assembly, and electrical work. Option 2 constructs the bulkhead sill and includes mobilization, hydrographic surveys, mechanical dredging, drilled shafts, stay-in-place formwork, and tremie concrete placement, and test dewatering of the upstream chamber from the new bulkhead sill to the guard gate, bulkheads will be government furnished equipment.

Updates:

06/24/2025: This is a reminder that the Pre-Bid Site Visit is scheduled for June 30, 2025 at 10:00 AM CT. Please see PREPROPOSAL MEETING NOTICE in the solicitation for further details.

06/25/2025: Amendment 0001 (located in attachments) - Adds additional highlighted requirements for the Preproposal Meeting Notice and adds FAR 52.242-5 Payments to Small Business Subcontractors.

07/01/2025: Added the L19 Pre-Bid Meeting Signup sheet to the attachments.

07/16/2025: Added the L19 site visit sheet to the attachments.

07/18/2025: Amendment 0002 (located in attachments) - Adds revised Schedule of Prices and Source Selection Plan, updates specifications and plans, and extends bidder inquiry period and proposal due date.