McNary Turbine Maintenance Platforms

The US Army Corps of Engineers, Walla Walla District is seeking sources to supply Turbine Maintenance Platform (TMP) elements for McNary Dam. This will be a firm-fixed-price supply contract. The North American Industry Classification System (NAICS) code for this project is 332312 and the associated small business size standard is 500 employees.

Summary Scope of Work

The work includes fabrication, structural aluminum welding, and load testing of custom scaffolding, to include:

• Two (2) new floating turbine maintenance platforms (TMP)


• Two (2) new draft tube access platforms (DTAP)


• Two (2) new blade scaffoldings


• Two (2) new personnel hoists and frames


• Storage/transportation carts for all TMP and DTAP components.

These custom scaffolding systems are used to access and maintain hydropower units. They are comprised of both standard aluminum shapes and welded, built-up members constructed of thin aluminum plate. The assembled tolerances are 1/8” for lengths exceeding 30 feet and 1/16” for lengths under 30 feet without machining. Prototypes will be contractually required to verify the dimensional tolerances can be met with the fabrication plan.

The Contractor must demonstrate experience in welding structural aluminum in compliance with Structural Welding Code - Aluminum (AWS D1.2/D1.2M) standards and in welding aluminum plate 1/8” and thinner utilizing the Gas Tungsten Arc Welding (GTAW) process. Bending and machining of aluminum will also be required.

All work will occur offsite at a contractor’s facility, and a commercial trucking company will be used to deliver the completed TMP elements to McNary Dam. Upon delivery the Contractor will provide an onsite instructional demonstration on the TMP assembly, directing Government personnel in performing the setup.

THIS IS NOT A SOLICITATION. This sources-sought announcement is a tool to identify businesses with the capability to accomplish the work. Firms who respond to this announcement by submitting the following information will be used in determining whether to set aside this requirement. Please do not respond to this notice unless you will be responding to the solicitation.

1. A capability statement expressing interest in this requirement, describing your company and its capability to complete a project of this scope, magnitude, and complexity. Include a statement detailing any special qualifications or certifications, applicable to this project’s scope, held by your firm and/or in-house personnel.


2. A statement or list of your firm’s current or past technical experience similar to or the same as the summary scope of work for this requirement. Include a brief description of each project scope, schedule, and dollar value.


3. A statement or list of your firm’s current or past performance similar to or the same as the summary scope of work.


4. Business classification, e.g., Small Business (SB), Small Disadvantaged Business (SDB), Woman-Owned Small Business (WOSB), Veteran-Owned Small Business (VOSB), Service-Disabled Veteran-Owned Small Business (SDVOSB), Historically Underutilized Business Zone (HUBZone) Small Business, 8(a) Business Development Program participant, or Other Than Small Business (large business). IF YOUR FIRM IS A LARGE BUSINESS, please indicate the approximate percentage of the work that you would expect to subcontract to small business concerns.


5. Name of firm with address, phone, and point of contact.


6. System for Award Management (SAM) Unique Identification Number and CAGE Code.