Lock and Dam 10, Island Building Project, Phase 3

Solicitation / RFP / RFQ

This document is a bid abstract for "Pool 10 - Stage 3 Island Building near Guttenberg, IA," solicited by the U.S. Army Corps of Engineers. It details the bids received from various contractors for the specified construction work.

The project involves several construction tasks, including:

• Berm & Island Construction (Granular Fill and Fine Fill) for various areas (SP-H4, RS-H5, SP-H6, IS-H32, RS-H6, IS-H3, IS-H107, IS-H4).
• Riprap placement for various areas.
• Turf Establishment for various areas.
• Mudpuppy / Mussel Habitat construction.
• Willow planting.
• Bonds (Performance and Payment).

This document presents bid prices from multiple contractors for the BASE bid and OPTION 1. The specific contract type, period of performance, and estimated value are not detailed in this abstract, but it shows the total bid amounts for each contractor.

This document is a bid abstract, indicating that bids have already been opened. The Bid Opening date was April 14, 2026, at 2:00 p.m. The abstract lists the unit prices and total amounts for each line item from different bidders, facilitating comparison.

No specific set-aside or eligibility requirements are mentioned in this bid abstract.

• The document includes bid information from Legacy Corporation of IL, Dubuque Barge & Fleeting Service Co. (dba Newt Marine Service), Togiak Logistics Services, LLC, and Jones Contractors & Associates, LLC.
• There is a note regarding unit price extension errors for one bid, resulting in a different total bid amount than initially read at the bid opening.

Amendment / Modification

This amendment (0001) to Solicitation W912ES26BA009 makes the following changes:

• Response Due Date: Extended from April 09, 2026, to April 14, 2026.
• Section 01 00 00.00 GENERAL, Paragraph 3.3 Other Contracts: Added a new paragraph specifying that the McMillan Island dredge disposal stockpile cannot be used for the Lower Pool 10 HREP Stage 3 contract until the Lower Pool 10 HREP Stage 1 contract is completed (currently scheduled for November 25, 2027).
• Section 35 20 23 DREDGING, Paragraph 2.1.3 Fine Material and Granular Material: Revised the text regarding the source of granular material (sand) for islands and shoreline protection. It now prioritizes access dredging, then main-channel dredging, and finally the McMillan Island Dredge Disposal Area per Specifications Section 01 00 00.00 13.
• Section 35 20 23 DREDGING, Paragraph 2.2.2 Granular Fill: Updated to state that granular fill should be obtained from access dredging, designated borrow sites, and the McMillan Island Dredge Disposal Area.
• Section 35 20 23.40 13 PLACEMENT OF DREDGED AND STOCKPILED FILL MATERIAL, Paragraph 3.6.1 Granular Fill: Added a clarification that the requirement for placing granular fill in lifts and compacting it applies only when placing granular material one foot or more above the water surface.
• Section 35 20 23 DREDGING, Paragraph 3.8 Attachments: Revised the dredging priority list within the "Lower Pool 10 HREP Borrow Sources from McMillan Island and Channel Dredging" attachment. The new priority order is: Catfish Slough - Stages 2 & 3, Hovie Island - Stage 2 & 3, Upper Approach to LD10 - Stage 1, and McMillan Island - Stage 1.

Sections 00 00 00, 01 00 00.00, 35 20 23, 35 20 23.40 13, and the attachment referenced in 35 20 23.

The proposal submission deadline has been extended to April 14, 2026.

Amendment / Modification

This document, "Amendment 0001 Channel Borrow Maps.pdf", provides updated survey data and maps related to potential granular borrow channel dredging locations. The key information includes:

• Updated Survey Quantities: Quantities for dredging are accurate as of the date of the surveys (April 2024).
• Side Slopes: Quantities are to include 2:1 side slopes.
• Cut Priorities: The government will determine quantities and cut priorities at the time of dredging.
• Anticipated Dredging Locations: The document outlines specific locations and stages for anticipated granular borrow channel dredging:
  • Catfish Slough - Stages 2 & 3
  • Hovie Island - Stages 2 & 3
  • Upper Approach to LD10 - Stage 1
  • McMillan Island - Stage 1

This amendment provides new map data and associated volume calculations for the following areas:

• Catfish Slough: River Miles 625.9-627.0
• Hovie Island: River Miles 621.5-622.6
• Upper Approach to LD10: River Miles 617.5-619.5
• McMillan Island: River Miles 617.5-619.5

This amendment provides updated survey data and maps. Bidders should review these updated details for accurate volume estimations and site understanding relevant to their proposals. No changes to proposal deadlines or submission requirements are indicated in this amendment.

Amendment / Modification

This document, "Amendment 0001 Full Spec Sections.pdf," appears to be an amendment to the original solicitation. While the specific details of the changes are not fully described in the provided text, amendments typically introduce modifications to the original solicitation documents. These changes could include:

• Updates to Specifications: Modifications to technical requirements, scope of work, or performance standards.
• Clarifications: Responses to bidder questions or further explanation of existing requirements.
• Changes to Deadlines: Adjustments to proposal submission dates, response deadlines, or other key milestones.
• Addition or Modification of Attachments: New forms, drawings, or other documents may be added, or existing ones may be revised.

This amendment likely affects various sections of the original solicitation, including but not limited to:

• Division 01 - General Requirements (Sections 01 00 00.00 13, 01 32 01.00 13, 01 57 20.00 13, 01 71 23.05 13)
• Division 35 - Waterway and Marine Construction (Sections 35 20 23 and 35 20 23.40 13)

Bidders should carefully review this amendment to understand any potential impact on their proposal submission strategy, pricing, or technical approach. Any changes to deadlines or requirements will be critical for timely and compliant submissions.