This Sources Sought opportunity from Department Of Defense was posted on June 15, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Sources Sought Rathbun Lake Project, Shoreline Stone Protection, USACE Approved Quarry and Delivery to Site

Closed

W912DQ26SS31977Federal

Submission Closed06/22/2026, 04:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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AI Contract Overview

The U.S. Army Corps of Engineers, Kansas City District, is conducting market research through a Sources Sought notice for the Rathbun Lake Project Shoreline Stone Protection in Centerville, Iowa, seeking qualified firms capable of supplying and delivering riprap stone from USACE-approved quarries. The requirement is classified under NAICS code 212312, with a small business size standard of 750 employees, and the government is evaluating potential set-asides for small businesses or full and open competition based on responses. The stone must meet strict gradation specifications, including 100% of material weighing between 500-691 lbs, 50% between 130-205 lbs, and 15% between 41-102 lbs, with all material being durable, clean, and free of cracks, blast fractures, seams, or defects that could compromise longevity. Delivery must occur at a minimum rate of 1,500 tons per day using only standard end-dumping trucks, between 7 a.m. and 5 p.m. Monday through Friday, excluding federal holidays, with deliveries limited to one site at a time and stone dropped no higher than 8 feet. Materials must be quarried from approved sources or undergo a 60-workday testing phase if unapproved, and all stone must undergo a 14-day curing period prior to delivery. The contractor is responsible for conducting physical testing per ASTM standards for gradation, density, absorption, freeze-thaw, wetting-drying, and LA abrasion, with tests required every 15,000 tons, and all weighing equipment must comply with NIST HB 44. Firms must submit a capability statement not exceeding 15 pages in PDF format, including company profile details, socio-economic status under NAICS 212312, joint venture information if applicable, quarry location and approval status, mobilization distance, confirmation of delivery capacity, technical testing experience, and up to three similar USACE projects completed within the last five years. Compliance with the Revolutionary FAR Overhaul 52.219-14 Limitations on Subcontracting is mandatory, and the delivery portion of the contract will be subject to Service Contract Act wage determinations. All responses must be emailed to Angella Curran by 12:00 p.m. CST on June 22, 2026, with the subject line including

General Info

USACE seeks firms supplying 1,500+ tons daily riprap stone for Rathbun Lake shoreline protection.

Agency

Department Of Defense → W071 Endist Kansas City

NAICS

212312 - Crushed and Broken Limestone Mining and Quarrying

Place of Performance

Centerville, IA, USA

Set-Aside

NONE

Documents

Attachment 1 Purchase Description Stone Protection Shoreline DRAFT

sow

High

Sources Sought Notice for Rathbun Shoreline Stone Protection

sources-sought

Low

USACE List of Approved Quarries

other

Low

AI Contract Breakdown

Uniform Contract Format

Timeline

PhaseClosed

PostedJun 15

Sources Sought

Response DeadlineJun 22

Deadline has passed

Submission Closed

06/22/2026, 04:00:00 PM UTC

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Organization & Contact Information

AgencyDepartment Of Defense → W071 Endist Kansas City

Contacts2 people available

OfficeKANSAS CITY, MO, 64106-2896, USA

Organization / AgencyDepartment Of Defense → W071 Endist Kansas City

Office AddressKANSAS CITY, MO, 64106-2896, USA

Contacts

Angella Curran

contact@example.gov

+1 (555) 000-0000

Christopher W. Anderson

contact@example.gov

+1 (555) 000-0000

Full Description

Notice Type:

Sources Sought

Rathbun Lake Project Shoreline Stone Protection, Rip Rap Quarried from United States Army Corps of Engineers (USACE) approved sources and Delivery
The U.S. Army Corps of Engineers (USACE), Kansas City District (NWK), is issuing this Sources Sought notice as a means of conducting market research to identify parties having an interest in, and the resources to support, the requirement for the following:

See Draft Purchase Description Attached.

The anticipated delivery portion of the contract will be accomplished by labor categories that are subject to Service Contract Act (SCA) Wage Determinations.

The intention is to procure these services on a competitive basis.

DISCLAIMER

Based on the responses to this Sources Sought notice, this requirement may be set aside for small businesses (in full or in part) or procured through full and open competition. All Small Business Set-Aside categories will be considered.

This is a Sources Sought Notice and is for informational purposes only. This is not a Request for Proposal (RFP), Request for Quote (RFQ), or an Invitation for Bid (IFB). There is no bid package, solicitation, specifications or drawings available with this announcement. It does not constitute a procurement commitment by USACE, implied or otherwise. No contract will be awarded from this Sources Sought Notice. Response is strictly voluntary; no reimbursement will be made for any cost associated with providing information in response to this Sources Sought or any follow-up information requests. The Government shall not be liable for or suffer any consequential damages for any improperly identified information. Not responding to this notice does not preclude participation in any future solicitation, if issued. If a solicitation is released, it will be synopsized on the Governmentwide Point of Entry (GPE). It is the responsibility of potential contractors to monitor the GPE for additional information pertaining to this requirement.

Telephone inquiries will not be accepted or acknowledged, and no feedback or evaluations will be provided to contractors regarding their submissions.

Additional information may be requested after initial response, either from individual respondents or all respondents. This Sources Sought is the only document that will be published notifying potential offerors of the Government’s intent of establishing a competitive market base.

PROJECT DESCRIPTION

Place of Performance: Rathbun Lake Project, Centerville, IA.

North American Industry Classification System (NAICS) Code: The North American Industrial Classification System (NAICS) Code is 212312 “Crushed and Broken Limestone mining and Quarrying”.

Small Business Size Standard: 750 Employees.

ADDITIONAL INFORMATION

*If you do not have a Commercial and Government Entity (CAGE) code or a Unique Entity Identifier (UEI), and you are interested in pursuing a contract with the Government, please register in the SAMs website as soon as possible (register through https://www.sam.gov/SAM/). CAGE codes and UEIs are required prior to the submission of your quote/proposal/bid but not required for this Sources Sought.

To be considered interested and/or qualified, firms must submit the following minimum requirements:

Interested firms are requested to submit a Capability Statement demonstrating their ability to perform these services. Submissions should include:

Company Profile: Company Name, Address, Point of Contact, Phone, Email, and CAGE/UEI Number.
Socio-Economic Status: Business Size (e.g., Large, Small, HubZone, SDVOSB, 8(a), WOSB) under the applicable NAICS code.
Firm’s Joint Venture information, if applicable
Quarry Location & Approval Status: Identify the proposed stone source (specific bed and quarry location). State whether the source is on the approved list or if it is an unapproved source that will require the 60-workday testing phase. Attached is a list of approved local quarries for your reference. Please note that contractors are not restricted exclusively to this list, but any source utilized must be a USACE-approved quarry.
Mobilization distance to the Quarry site and to the location of delivery.
Logistics Capability: Confirm the ability to meet the minimum delivery rate of 1,500 tons per day using standard end dumping trucks (no trailers, belly dumps, or side dumps).
Technical Testing Capability: Describe experience/ability to conduct physical testing (gradation, density, absorption, freeze-thaw, wetting-drying, and LA abrasion) in accordance with the listed ASTM standards.
Relevant Experience: List up to three (3) similar projects completed within the past five (5) years involving USACE stone protection or riprap placement.
Ability to successfully comply with the provisions of Revolutionary FAR Overhaul (RFO) 52.219-14 Limitations on Subcontracting. https://www.acquisition.gov/far-overhaul/far-part-deviation-guide/far-overhaul-part-52#FAR_52_219_14
Firm’s Joint Venture information, if applicable.
Responses shall not exceed fifteen (15) pages. All attachments must be in Adobe pdf format.

Contractors are advised that information provided to the Government regarding this Sources Sought Notice will be considered Controlled Unclassified Information (CUI) and will not be released to the public or other potential contractors. The Government may retain this information for its records indefinitely.

E-mail your response to Angella Curran, Contract Specialist, at contact@example.gov no later than Interested offerors shall respond to the Sources Sought no later than 12:00 P.M. (CST) on June 22, 2026. Email is the preferred method of delivery for responses to this notice. Please include in the subject block of your email the project name “Rathbun Shoreline Protection” and Sources Sought number. Responses by FAX will not be accepted.

THIS ANNOUNCEMENT SHALL NOT BE CONSTRUED AS A COMMITMENT OR AUTHORIZATION TO INCUR COSTS IN ANTICIPATION OF AN AWARD. THE GOVERNMENT IS NOT BOUND TO MAKE ANY AWARDS UNDER THIS NOTICE.