Mill Creek Section 205 Flood Risk Management Improvements

The U.S. Army Corps of Engineers (USACE), Walla Walla District, is seeking information from interested business concerns capable of performing a construction project entitled Mill Creek Section 205 Flood Risk Management Improvements.

The work is located in and near the Cities of Walla Walla and College Place, Walla Walla County, Washington. The Mill Creek Flood Control Project begins approximately two miles east of downtown Walla Walla and extends approximately seven miles downstream near College Place at the Gose Street Bridge.

One hundred percent performance and payment bonds will be required. In accordance with RFO FAR Clause 52.228-1, a bid guarantee will also be required. The estimated magnitude of construction is between $10,000,000 and $25,000,000. The anticipated North American Industry Classification System (NAICS) code is 237990, Other Heavy and Civil Engineering Construction, with a corresponding small-business size standard of $45,000,000 in average annual receipts.

This sources-sought notice is issued for market-research purposes only to identify business concerns with the capability to perform work of this nature, magnitude, and complexity. THIS IS NOT A SOLICITATION FOR BIDS OR PROPOSALS. This notice does not constitute a commitment by the Government to issue a solicitation or award a contract. The Government will not reimburse respondents for costs associated with preparation or submission of responses. Responses will be used to assist the Government in determining the appropriate acquisition strategy, including whether a small-business set-aside is appropriate.

Interested business concerns should submit the following information:

1. Capability Statement. Provide a statement expressing interest in this requirement and describing the firm's capability to perform work of the anticipated magnitude and complexity. Identify special qualifications, certifications, key personnel, self-performance capabilities, equipment, and any proposed teaming arrangements relevant to the summary scope of work.

2. Relevant Experience. Provide at least three projects completed within the past seven years that are similar in scope, complexity, and magnitude. For each project, provide:

-- Project title and location;
-- Customer/owner;

-- Contract value;

-- Period of performance;

-- Brief description of the work performed;

-- The firm's role, including prime contractor, joint-venture member, or subcontractor;

-- Major work self-performed by the firm; and

-- Point of contact, including name, title, telephone number, and email address.

3. Bonding Capacity. Provide the firm's single-project bonding capacity and aggregate bonding capacity.

4. Business Size and Socioeconomic Status. Identify the firm's business size under NAICS 237990 and any applicable socioeconomic designations, including small business, Small Disadvantaged Business, 8(a), Historically Underutilized Business Zone (HUBZone) small business, Woman-Owned Small Business, Veteran-Owned Small Business, and Service-Disabled Veteran-Owned Small Business.

5. SAM Registration. Provide the firm's Unique Entity Identifier (UEI) and confirm whether its System for Award Management registration is active.

Submit responses by email to:

Chandra Crow, Contract Specialist

U.S. Army Corps of Engineers, Walla Walla District

Email: Chandra.D.Crow@usace.army.mil

Responses are due no later than 3:00 p.m. Pacific Time, December 4, 2026.

Summary of Scope of Work:

The Mill Creek Flood Control Project provides flood-risk management for the City of Walla Walla and adjacent areas in Walla Walla County, Washington. The project includes upstream channel, concrete channel, and downstream channel sections.

The anticipated construction work includes flood-risk-management improvements and repairs at multiple locations along and within the upstream and downstream Mill Creek channel sections. Work may include:

-- Raising existing levees by up to approximately three feet at five locations;

-- Landward enlargement of levees while maintaining 2H:1V side slopes;

-- Placement of additional gabion revetment at one location;

-- Placement of additional riprap at transition areas, including ramp-to-levee and levee-to-bridge-abutment transitions;
-- Construction of new concrete walls and/or raising of existing concrete walls at levee and bridge-transition locations;

-- Construction of a concrete access ramp;

-- Removal of trees and vegetation along the landside levee toe;

-- Removal and in-kind replacement of existing fencing, as necessary to perform the work;

-- Removal of a ceiling section in a covered portion of the existing concrete channel;

-- Reinforcement of an existing timber-plank-covered support wall within the channel below an existing building; and

-- Stabilization of two existing concrete-channel-wall sections using soil anchors and shotcrete facing.

Work will occur on Federal and non-Federal/private property. The anticipated project may require work-site access planning, coordination with affected property owners and utilities, traffic control, in-kind replacement of fencing and utilities as required, and work within or adjacent to the active channel.

The project is intended to improve Mill Creek system capacity by raising levees in low-assurance areas and to improve system reliability by repairing and reinforcing the concrete channel through downtown Walla Walla.

Desired Contractor Capabilities:

Interested firms should demonstrate experience with comparable civil-works construction, including:

-- Levee raising, embankment construction, earthwork, compaction, and slope construction;

-- Cast-in-place concrete work for new walls, wall raises, and access ramps;

-- Concrete repair, concrete-channel rehabilitation, and structural concrete demolition;

-- Gabion revetment and riprap placement;

-- Soil-anchor installation, testing, and shotcrete application;

-- In-channel or near-channel construction, including water-control/diversion measures and work-window planning;

-- Temporary works, shoring, and protection of existing structures during construction;

-- Utility protection, relocation, and restoration;

-- Traffic control and maintenance of public, property-owners, and emergency access;

-- Concurrent management of multiple construction sites; and

-- Planning and providing safe access to constrained work areas through cranes, temporary access systems, or other appropriate means.