A.02.10 - Sources Sought Announcement 2026.04.30 - W912HP26S0001 - Charleston Peninsula Project.pdf

SOURCES SOUGHT ANNOUNCEMENT No. W912HP26S001

Coastal Storm Risk Management (CSRM)

Charleston Peninsula, South Carolina

PURPOSE OF THIS ANNOUNCEMENT:

THIS IS NOT A SOLICITATION NOTICE. No proposals are being requested or accepted with this

Sources Sought (Market Survey). This announcement is for information and planning purposes only and is not to be construed as a commitment by the Government, implied or otherwise, to issue a solicitation or award a contract.

The U.S. Army Corps of Engineers (USACE), Charleston District, is conducting market research to determine interest and capability of qualified businesses (specifically under NAICS 237990, Other Heavy and Civil Engineering Construction) for upcoming phases of the Charleston Peninsula CSRM project.

The Small Business size standard for this NAICS code is $45 million.

The Government is currently evaluating procurement strategies and welcomes industry input to refine our approach for these critical infrastructure segments.

SUMMARY OF REQUIREMENTS:

The Charleston District requires the construction of the following specific work elements. Note that these segments represent the initial portions of the larger project effort.

• Adger’s Wharf - The City of Charleston (City) and the U.S. Army Corps of Engineers (USACE) are jointly advancing the Adger’s Wharf segment of the Charleston Peninsula, South Carolina

Project with the goal of delivery towards a design/build or collaborative construction contract.

This segment represents one of the most historically significant and technically complex reaches of the overall effort. The project area extends from S Adger's Wharf to the southern end of

Waterfront Park, encompassing approximately 1,200 linear feet of seawall and pedestrian promenade. Construction rough order of magnitude costs are expected to be between $15M and

$30M.

• Lockwood Drive - The City of Charleston (City) and the U.S. Army Corps of Engineers

(USACE) are jointly advancing the Lockwood Drive segment of the Charleston Peninsula, South

Carolina Project with the goal of delivery towards a design/build or collaborative construction contract. This segment represents one of the lowest elevation and vulnerable segments of the effort. This project area —approximately 7,820 linear feet—extends from Ashley River Bridges southward to the USCG Station at Tradd Street, forming a critical portion of the City’s long‑term coastal flood protection system. The project will incorporate tide gates, public promenade, ADA‑compliant tie‑ins, pedestrian ramps, and nature‑based shoreline enhancements, while coordinating with adjacent City initiatives such as the Ashley River Crossing (ARC) and Ashley

River Walk (ARW). Construction rough order of magnitude costs are expected to be between

$150M and $250M.

POTENTIAL ACQUISITION STRATEGIES

USACE is considering several delivery methods and requests feedback on which strategy best suits the technical complexities of the segments listed above.

• Design-Build (DB) - A single contract for both design and construction services.

• Design-Build-to-Budget (DB2B) - DB approach where the design is optimized to meet a fixed project budget.

• Integrated Design & Construction (IDAC) - Independent design and construction contracts, with a collaborative approach involving the contractor early in the design phase to improve constructability.

• Design-Bid-Build (DBB) - Independent design and construction contracts using the traditional method where design is 100% complete before construction bidding.

Industry Input Requested: Please provide suggestions on which strategies (e.g., DB2B, IDAC, or traditional DB) would be most effective for the Adger’s Wharf or Lockwood Drive segments based on current market conditions.

SUBMISSION REQUIREMENTS

Interested firms are requested to provide the following information:

(1) Intent & Interest: A statement of your firm's intent to submit a proposal and which specific element(s) (Adger’s Wharf or Lockwood Drive) interest you.

(2) Firm Profile: Name, address, phone, POC, CAGE Code, and UEI number.

(3) Socio-Economic Status: Size of firm (Large or Small). If Small, specify categories (8(a), HUBZone, SDVOSB, WOSB, etc.).

(4) Bonding Capability: A brief statement of your firm's single and aggregate bonding capacity (a formal Surety Company letter is not required at this stage).

(5) Experience: Provide three (3) recent (within the last 10 years) and relevant examples of similar heavy civil construction projects where your firm acted as the Prime Contractor. Include contract numbers, locations, and brief descriptions of challenges/innovations.

(6) Engineering Capability (Adaptability): Please detail your firm's technical approach and institutional experience regarding adaptive capacity of flood protection structures. Your firm's submission should demonstrate capability in designing phased structures with overbuilt foundations capable of supporting the ultimate projected loads, increased hydrostatic pressures, and geometric requirements of future vertical extensions. Please discuss detailed interface strategies to ensure a high strength watertight bond between the baseline crest and the future vertical increment. Your firm's proposed methodology should clearly articulate how the design will eliminate prohibitive costs and technical risks associated with retrofitting subsurface structures in subsequent phases.

Responses are expected to outline rigorous lifecycle management and construction continuity protocols for all phased approaches. Please include discussion of your firm’s capacity to utilize advanced modeling to account for long term settlement and global stability under phased loading scenarios. Your firm's proposed construction methodology should detail the use of nonintrusive techniques to ensure the existing surge protection remains fully functional and uncompromised during phased upgrades. Please articulate how your firm's technical methodology culminates in a seamless integration of the new vertical extension into the broader barrier alignment.

(6) Strategy Feedback: Summarize your experience with DB, DB2B, or IDAC delivery methods. In addition to your firm’s experience, we ask that each firm make suggestions for which work elements would be best fit for the use of DB2B,IDAC, and other innovative strategies and why.

(7) Project Labor Agreements: Project Labor Agreement (PLA) is a tool that agencies may use to promote economy and efficiency in Federal procurement. An agency may, if appropriate, require that every contractor and subcontractor engaged in construction on the project agree, for that project, to negotiate or become a party to a project labor agreement with one or more labor organizations. Please summarize a response to the following questions:

a) Is your company familiar with Project Labor Agreement (PLA) and its use on construction projects?

b) Would your company likely submit a proposal for the construction solicitation that requires the use of a PLA?

c) If this project requires a PLA, would your proposed construction cost likely increase or decrease and what is the likely percentage of cost increase or decrease?

d) Does the requirement to use of a PLA on a construction project restrict competition?

e) Do you expect subcontractor resistance should you be required the use of a PLA on this construction solicitation?

f) Do you have additional comments regarding the use of a PLA for this project?

SUBMISSION INSTRUCTIONS:

• Page Limit: Evidence of capability (Item 5) is requested not to exceed five (5) pages.

• Due Date: Responses are requested by 4:00 PM Eastern time 28 May 2026.

• Primary POC: Send responses to the Contract Officer, Addison Layfield, at addison.g.layfield@usace.army.mil.

Secondary POC: Evelyn Halliburton, Contract Specialist, evelyn.i.halliburton@usace.army.mill

• Subject Line: Please use "SS RESPONSE: W912HP26S0001 FIRM NAME”

Important Notes:

• Participation is voluntary; the Government will not pay for information provided.

• Submittals are for market research only and will not be used to rank or evaluate firms for future solicitations.

The Government reserves the right to contact respondents for further clarification to strengthen our acquisition strategies.

mailto:evelyn.i.halliburton@usace.army.mill

PROJECT INFORMATION SAMPLE

(Make additional copies as needed)

Project Title:

Location:

Address of work site:

Contract number: Task order number:

Dates of performance: From To Total Contract Value: $

Total Value to date: $

Procuring activity:

Procurement point of contact: Phone:

Type of agency: Fed Govt State Govt Municipality Private Other (describe) Performed as: Prime Contractor Subcontractor Other (describe)

General description of work: 1.Describe your experience with similar projects