California Institute of Technology, Pasadena, California 91125, Purchasing Department, Mail Code: 309-6, Jose A. Lopez-Tiana, Contracts Administrator

C -- FINISH GRADING AND PLACING OF BEAM TUBE SLAB, SUPPLY OF THE BEAM TUBE ENCLOSURE, AND CONSTRUCTION OF PAVED ROADS The California Institute of Technology plans to award a contract in Hanford, Washington in support of the Laser Interferometer Gravitational-Wave Observatory (LIGO) Project. The contract will consist of the following items. Item 1 - Placing of a concrete slab, approximately 5 inches thick, 14 feet wide and five miles long. The slab elevations will be held to close tolerances. Item 2 - Manufacture and delivery to the site (excluding installation) precast concrete enclosures that will fit on the concrete slab. The enclosures will be approximately 5 inches thick, 14 feet wide and 10 feet long, and of a parabolic or other suitable shape. There will be approximately 2,600 sections to be delivered to the site. Item 3 - Approximately 5 miles of a 20 feet wide Multiple Bituminous Surface Treatment paved road. If additional clarification is needed, please contact Otto Matherny at (818) 395-3186. Bid packages will be available on or about 15 November 1995 for a $100.00 non-refundable fee. The bid package will contain information concerning a scheduled pre-bid conference to be held in the Hanford, Washington area. If a bid package is desired, please make your check payable to the California Institute of Technology, and mail to: Caltech - LIGO Project, Attn: Ed Jasnow, M/S 51-33, West Bridge, 1201 E. California Avenue, Pasadena, CA 91125. (311)

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