Bureau of Reclamation, Contracts Group, 1150 N. Curtis Road, Suite 100, Boise, Idaho 83706-1234

Z -- REPLACEMENT OF FOUR 8-INCH FILLING VALVES IN TIETON DAM PENSTOCK GATE CHAMBER SOL 99-SQ-10-00030 POC Joe Pratt, Contract Specialist at (208) 378-5139 E-MAIL: Click here to contact Mr. Pratt., jpratt@pn.usbr.gov. The Bureau of Reclamation's Yakima Project has a requirement to install four Government-furnished 8-inch stainless steel valves, install four Government-furnished 90-degree elbows and, furnish and install the associated insulating gaskets and dielectric kits at our Tieton Dam location in Washington State. Tieton Dam is located approximately 50 miles west of Yakima WA on U.S. Highway 12. Access to the work site will be maintained by the Government as the area receives heavy snowfalls during winter months. The ambient temperature in the gate chamber where the work will occur is a constant 50 degrees F. The work area is located approximately 400 feet into the penstock tunnel in a very confined space. Due to the dam's design and our current reservoir operation constraints, the filling valves must be replaced while still under pressure. There is no method of shutting off the flows to the valves for the repair work. These filling valves are used to fill the larger penstock with lake water prior to opening the main gates to the penstock. At full lake head, the pressure in filling valves can reach 88 psi, however during late February when the work is projected to take place, the pressure may be less than 88 psi as the reservoir level is lower at that time of year. Freezing or cryogenic-type procedures will not be an allowed method of bulkheading the pipes for the valve replacements. Only mechanical methods will be considered. This is a technically-challenging, extremely risky requirement and Reclamation will require the services of a highly-knowledgeable contractor who has extensive experience in replacing valves in similar high-risk situations -- confined work spaces, valves under pressure, etc. An RFQ will be issued in late December or early January as a CD-ROM with paper copies of drawings representing the existing installation. The RFQ CD will also include digital photos of the work site which will show the existing valves and the very limited amount of work space available for this requirement. It's anticipated that some concrete cutting and removal may be required to gain sufficient access to the valves and pipes for the replacement work. The valves will be required to be replaced one at a time for safety reasons. The RFQ will request that interested offerors submit written technical proposals detailing: the offeror's proposed methods and equipment; references to contact for verification of experience with this type of requirement; proposed safety plan and procedures; and, a proposed emergency plan/method to follow should the Contractor lose control of the water flow during the work. Offers will be evaluated on the quality of their proposed work plan, the amount of successful past performance of similar work, the qualifications and experience of their proposed personnel, the quality of their proposed safety procedures, and price. Estimated range: $25,000 to $100,000. All responsible sources may submit an offer, which we will consider. The CD will be issued after December 22, 1998. Bidders may request the solicitation in writing at the address above, by FAX at (208) 378-5108 or by email to rgorczyca@pn.usbr.gov -- requests should reference the solicitation number. No charge for first copy of solicitation -- additional copies available for a non-refundable fee of $20. This requirement is not set-aside for small business. Telephone requests for the solicitation will not be accepted. See Numbered Note 26. Posted 12/08/98 (W-SN278442). (0342)

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