Bureau of Reclamation, Snake River Area Office, 214 Broadway Avenue, Boise, ID 83702

41 -- PENSTOCK TUNNEL VENTILATION SYSTEM SOL 1425-99-SQ-11-00040 DUE 050699 POC ERNIE BACHMAN -Mechanical Engineer-208-334-9561 Marie Day-Purch. Agent 334-1744 E-MAIL: mday@pn.usbr.gov, mday@pn.usbr.gov. This is a combined synopsis/solicitation for commercial items prepared in accordance with the format FAR Subpart 12.6 as supplemented with additional information included in this notice. This announcement constitutes the only solicitation;proposals are being requested and a written solicitation will not be issued. Solicitation 1425-99-SQ-11-00040 is issued as a Request for Quotations (RFQ) and incorporates provisions and clauses in effect through Federal Acquisition Circular 97-08. This acquisition is a total small business set-aside. The size standard is 100 employees, the standard industrial classifi- cation code is 3564, and the NAICS code is 421730. REQUIREMENTS FOR ANDERSON RANCH PENSTOCK TUNNEL VENTILATION SYSTEM. US BUREAU OF RECLAMATION, SNAKE RIVER AREA OFFICE. BOISE IDAHO. To meet the Reclamation Safety and Health Standards (RSHS) for ventilation requirements for construction work in the 20-ft diameter penstock tunnel, a system must be installed with a 13,200 cfm minimum capacity. The existing ventilation system consists of an overhead 16-inch steel duct, with an exhaust fan producing 1700 cfm. To minimize the size of new duct work, the existing 16-inch duct will be used and manifolded into the new duct. One fan will be used on a common trunk to exhaust air outside, which will draw fresh air into the tunnel entrance. The new duct run will consist of a rigid fiberglass oval duct with outside dimensions of approximately 11.125 x 22.5-Inch. The duct will be installed in 10-foot sections each of which has one bell and one spigot end, with the bell ends having a dimension of approximately 12- 1/8 x 23.5-Inch. The duct will lie at approximately the 7:00 position (on a clock face looking downstream), below the walkway on the left side of the penstock. The duct will run to the downstream end of the tunnel, and pass up underneath and between the stairway and penstock on the left side of the tunnel, for a total length of approximately 800 feet. It will enter a manifold located on the floor at the elevation of the exit from the tunnel. Field cuts by government personnel will be required to piece the ductwork around the penstock and up to the manifold, using a combination of two 90 degree elbows and four 45 degree elbows. The existing 16-inch steel duct will also enter this manifold. A 24-inch round fiberglass duct will carry air from the manifold to the exterior of the tunnel entrance and make a 90-degree turn to the north of the entrance to the fan location about 20 feet from the entrance. A total length of approximately 120 feet of the 24-inch duct will be required. A vane-axial fan, using 3-phase power at 480 volts, will exhaust air from the ventilation system.(SEE AUTOCAD FILE DRAWING "Pensvent.dwg" (SRAO-AN-001) for a general layout of complete system). Reclamation requires a supply contract for the duct work and exhaust fan. Vendors may bid on either one or both items. SUMMARY OF REQUIREMENTS: Elevation of ventilation system and fan: 3,880-ft above sea level, Penstock Tunnel Inside Diameter: 20-ft, Penstock Outside Diameter: 15-ft-2.75-inch, Exhaust Air Requirement: 13,200 cfm minimum. Ductwork: System to work in exhaust mode, with fan pulling air through ductwork to exterior. Based on the system requirements the vendor shall supply the results of their calculations for static pressure requirements for their proposed ductwork at elevation 3,880-ft. They shall also state the safe operating range of static pressures for their duct, used in the exhaust mode. The system will deliver a total of 13,200 cfm, with approximately half of this passing through the existing 16-inch duct and the other half through the new duct run. Existing: 16-inch Steel duct. Total length to common manifold: 762-ft. This existing duct will be used and tied into the common manifold. New Ductwork Provided by Vendor: 1. Oval Rigid Fiberglass, filament wound construction, extended duty duct tubing. Approximate dimension: 11-1/8 x 22-1/2-inch. (Minor dimension not to exceed 11-1/2-inch). Collapse pressures of tubing to be rated to safely withstand static pressures encountered in system while exhausting air. Bell and spigot couplings with gaskets on the bell end shall be provided to minimize air loss. Total length to common manifold: 800-ft (77 x 10-ft sections, and 2 x 15-ft sections, all with bell and spigot ends. 15-ft sections will be cut to shorter lengths in field as needed to run ductwork around penstock and up to the manifold through a series of 90 and 45 degree elbows. These lengths are difficult to determine accurately beforehand and will be based on field measurements. Provisions will be needed allow air-tight insertion of short duct work sections into elbows and vice versa. Elbows required: Elbows to be provided with gaskets. Two -- 90 degree Horizontal Elbows (90 degree turn in the plane of the major axis). Four -- 45 degree Vertical Elbows (45 -degree turn in the plane of minor axis). 2. 24-Inch Round rigid fiberglass extended duty Duct. Collapse pressures of tubing to be rated to safely withstand static pressures encountered in system while exhausting air. Total length from common manifold to Vane Axial Fan: 120-ft. Elbows required: One -- 90 degree elbow. 3. Manifold: 24-inch dia. Rigid fiberglass Wye. One leg 16-inch dia.(from existing Steel duct). One leg 18-inch round (from new oval duct). Also require a transition piece from 11-1/8-inch x 22-1/2-inch oval duct to 18-inch round to insert in manifold. Air will be pulled from the existing 16-inch duct and the new 18-inch transition piece through the manifold and out the 24 -inch leg to the fan. Require a minimum of 13,200 cfm total air flow through the manifold. Fan: Provide Vane Axial Fan to achieve a minimum of 13,200 cfm at approximately 17-inches WG. A two stage fan may be required. (Vendor to calculate actual static pressures and fan requirements, based on 13,200 cfm minimum through the above described duct work). Motor: 480volt, 3-phase, including motor starter, start/stop push button, and circuit breaker disconnect, and 120 volt transformer for control power. Include an Adaptor to transition from the fan to the 24" tubing, and an inlet bell and safety screen. Decibel level should not exceed 96 dBA. Pricing: Please provide a complete cost breakdown of all round and oval ducts, elbows, transition pieces, manifold, fan, controls, and fan accessories such as inlet bell and safety screen. Required Submittals: Ductwork: Provide the following: 1. Complete description of materials and construction of the proposed ductwork, couplings, and coupling gaskets. 2. Calculations of static pressure requirements of complete duct system. Give a break-down of approximate flows and total static pressure through the existing 16-inch duct and the new 11-1/8 x 22-1/2-inch oval duct to yield a combined minimum flow of 13,200 cfm. Provide a tubing resistance Nomograph presenting air volume rate vs. static pressure loss for the given duct sizing. 3. Duty rating (collapse pressure rating) of proposed duct tubing for the 11.25 x 22.5-inch oval and 24-inch round tubing and the three-way manifold. 4. Accurate dimensions of the bell and spigot ends and the weight per foot of all proposed duct work. 5. Accurate dimensions of the 90-degree and 45-degree elbows and the three-way manifold. Exhaust Fan: Provide the following: 1. Calculations of the static pressure requirements of the fan for the proposed system. 2. A complete description of the proposed fan, including a drawing with dimensions, a statement of the volume rate (cfm) output at the calculated static pressure, performance curves, horsepower, voltage, rpm, number of stages, type of controls, disconnects, motor starter, and provisions for mounting. 3. Provide decibel operating level. 4. Description, drawings and dimensions of the adaptor from the fan to the 24-inch round duct and other required accessories such as inlet bell and safety screen. REQUIRED DELIVERY DATE WILL BE ON OR BEFORE 6/11/99. The following FAR Provisions and clauses apply to this acquisition: 52.212-1 Instructions to Offerors -- Commercial Items (OCT 95), 52.212-2 Evaluation-Commercial Items (OCT 95), 52.212-3 Offeror Representations and Certifications -- Commercial Items (JAN97), 52.212-4 Contract Terms and Conditions -- Commercial Items (MAY 97), 52.212-5 Contract Terms and Conditions Required to Implement Statutes or Executives Orders -- Commercial Items (AUG 96). Clause 52.212-5 paragraph (b) is tailored to incorporate the following clauses by reference: 52.219-8, 52-219-14, 52.222-26, 52-222-35, 52.222-36, 52.222-37, 52-225-3, 52.225-18, and 52.225-21 with Alternate 1. Offerors are to include a completed copy of the provision at 52.212-3, Offeror Representations and Certifications -- Commercial Items (JAN 97) with the RFQ. Offerors may request a copy of this clause and a copy of the AUTOCAD file drawing "Pensvent.dwg" be faxed to them. The closing time and date for receipt of proposals is Close of Business May 6, 1999 local time. All sources responding to this synopsis/ solicitation shall do so in writing. All sources shall submit information relating to business status, including identification as to whether small, large, minority owned, and/or woman owned. All responsible sources may submit an offer, which will be considered by this agency. Fax requests will be accepted at the following number Attn: Marie Day: 208-334-9562, and e-mail requests through the following address: mday@pn.usbr.gov. See Note 1 Posted 04/21/99 (W-SN322948). (0111)

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