SOURCES SOUGHT
Z -- Cavitation Repair, Units 3-6, Lower Granite Dam
- Notice Date
- 5/11/2010
- Notice Type
- Sources Sought
- NAICS
- 237990
— Other Heavy and Civil Engineering Construction
- Contracting Office
- Department of the Army, U.S. Army Corps of Engineers, USACE District, Walla Walla, Attn: CENWW-CT, 201 North 3rd Avenue, Walla Walla, Washington, 99362-1876, United States
- ZIP Code
- 99362-1876
- Solicitation Number
- W912EF-10-R-SS27
- Archive Date
- 6/3/2010
- Point of Contact
- Phyllis Buerstatte, Phone: 509-527-7211, Jani C Long, Phone: 509-527-7209
- E-Mail Address
-
Phyllis.L.Buerstatte@usace.army.mil, jani.c.long@usace.army.mil
(Phyllis.L.Buerstatte@usace.army.mil, jani.c.long@usace.army.mil)
- Small Business Set-Aside
- N/A
- Description
- The US Army Corps of Engineers, Walla Walla District is seeking small business sources for a construction project entitled, Units #3-6 Cavitation Repair at Lower Granite Dam in Whitman and Garfield Counties, Washington. This will be a firm-fixed-price contract. Construction magnitude is between $1,000,000 and $5,000,000. The period of performance is approximately November 2010 through November 2011. A bid bond of 20% will be required. 100% Performance and payment bonds will be required. The work consists of providing all labor, technical expertise, materials, equipment, scaffolding and appurtenances necessary to accomplish the following turbine cavitation repairs for Units 3, 4, 5, and 6 at Lower Granite Powerhouse: Cavitation damage repair shall be performed on the turbine discharge ring only. A portion of the existing discharge ring material shall be ground or milled to good metal and anchoring the discharge ring/draft tube liner to the concrete. The contractor shall install 1 inch diameter reinforcement bars into the predrilled holes with epoxy-resin cartridges. After curing, the bars will be welded to the interior surface of the discharge ring and the ends cut off and ground flush. The discharge ring shall be spot repaired, built up with mild steel weld metal, stainless steel weld overlay placed, and the discharge ring surface ground and machined to the finished profile. There is some removal of concrete and restoration of the concrete surfaces and architectural finishes to the required lines and grades. The Contractor shall refurbish the discharge rings by removing material from the existing ring by machining, sanding, or grinding methods; repair and overlay welding; and surface finishing of the welded areas by machining and/or grinding, unless otherwise approved. No more than a 1/2 inch thickness of weld material shall be uniformly laid on the discharge ring, unless otherwise approved. Localized cavitation and surface damaged areas shall also be repaired. The contractor shall provide a procedure that describes the method of monitoring the weld interpass temperature and a detailed description of the method of protection of the turbine and generator from damage due to the repair process if that process involves unit rotation (e.g., thrust and guide bearing during machine rotation for discharge machining; weld current through the thrust or guide bearing). Welder qualification shall be in accordance with one of the following codes: (1) Section 4, Part C, of AWS D1.1, or (2) Section IX of the ASME Boiler and Pressure Vessel Code (ASME BPVC), or (3)AWS B2.1 (for cladding), whichever is most applicable to the work being performed. Cavitation repair welding will distort the discharge ring/draft tube liner causing it to pull away from the concrete behind it. The resulting voids must be filled with epoxy to absorb vibration of the discharge ring during turbine operation. The contractor will perform drilling and washing the epoxy injection holes and air relief holes; making epoxy-injection connections; furnishing, transporting, mixing and injection of the epoxy; patching the finished epoxy injection holes; clean-up of the draft tube lining and such other operations as are incidental to the drilling and epoxy-injection. Following the repair welding, the Contractor will inject a two component low viscosity epoxy resin adhesive behind the discharge ring/draft tube liner to fill voids created by distortion. Runner Blades, Runner Cone, Runner Hub Repair, Seal Retainer Segments and other Water Passage Elements are optional work items that would require excavation and deposit of mild steel or 309L stainless steel to a depth that is within 1/4 to 5/16 inch of the finished surface. This area would be finished with a stainless steel overlay. Contractor is required to follow the procedures in the Army Corps of Engineers Safety Manual, at http://www.hq.usace.army.mil. At the Headquarters homepage, select Safety and Occupational Health. This sources-sought announcement is a tool to identify small business concerns with the capability to accomplish the work. Only those firms who respond to this announcement by submitting a statement of their current or past technical experience (what the firm has done) and current or past performance (how well the firm did it) similar to or the same as the requirements stated above, will be used in the determination whether to set aside this requirement for small business. Include your firm's bonding capacity and a statement indicating the size of your business (small business, 8(a) small business, HUBZone small business, or Service Disabled Veteran Owned small business concern) to Phyllis Buerstatte, Contract Specialist, 201 North 3rd Avenue, Walla Walla, Washington 99362 or email responses to Phyllis.L.Buerstatte@usace.army.mil. Your response to this notice must be received on or before close of business on May 19, 2010.
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/USA/COE/DACA68/W912EF-10-R-SS27/listing.html)
- Place of Performance
- Address: Lower Granite Dam, Pomeroy, Washington, 99347, United States
- Zip Code: 99347
- Zip Code: 99347
- Record
- SN02146028-W 20100513/100511234758-d38af09c4f75780e3e8f1c411e2002f4 (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
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