Bureau of Reclamation, Acquisition Operations Group, Code D-7810, Denver Federal Center, PO Box 25007, Denver CO 80225

Z -- FURNISH AND APPLY MAGNESIUM CHLORIDE DUST PALLIATIVE ON FOREST SVC RD NO. 330 (PARK CREEK RD) SOL 1425-97-SQ-81-92039 DUE 050897 POC Evelyn M. Tate (303)236-8040 X228 WEB: Bureau Of Reclamation Denver Office Acquisition Home Page, http://www.usbr.gov/aamsden. E-MAIL: Contracting Officer's E-mail address, etate@do.usbr.gov. The Contractor shall furnish all labor, magnesium chloride and equipment for the application of dust palliative on Park Creek Road No. 330. The dust palliative shall be applied to a road surface 14-feet wide and 95,000-feet long. This application of dust palliative will take about one week, and is anticipated to begin approximately May 15, 1997. The Contracting Officer's Representative (COR) on the site, will confirm the actual date when the dust palliative shall be applied and any limits of application. Magnesium chloride shall be applied after the road surface has been reshaped, graded and moistened, as described below. Park Creek Road is located in southern Colorado, approximately 6 miles west of South Fork in Rio Grand County. The road is heavily used by contractors hauling materials to the site and by the general public. Guards will be posted at the lower guardhouse near the junction of Park Creek Road and Highway 160 and at the upper guard house found approximately 18 miles up Park Creek Road at the Summitville work site. They are responsible for notifying the public of road hazards and coordinating construction traffic. The contractor applying the dust palliative will be required to comply with Reclamation's Safety and Health Standards and coordinate his activities with others using the road. The dust palliative shall be magnesium chloride and may be furnished in either liquid or dry powder form. If furnished in dry form, the contractor will be responsible for providing the water and will mix the dust palliative at the job-site. The homogeneous solution formed shall be between 30 and 40 percent concentration, using mixing methods and equipment approved by the COR. The dust palliative material furnished shall have a minimum content on a dry-weight basis of 94 percent magnesium chloride. The Government reserves the right to test all materials when in the opinion of the government such tests are necessary. The cost of any delay or damage due to failure of the dust palliative material to comply with the specifications requirements shall be borne by the Contractor. Dust palliative shall be applied to the roadway surface in a homogeneous water solution as approved by the COR. The application rate shall be approximately 1.5 pounds of dry solids per square yard of surface. If steep road grades or slow penetration causes the liquid to run off the roadway, repeated passes at lesser rates may be necessary to obtain uniform and continuous coverage. The Contractor's application equipment shall be approved by the COR before use. The equipment shall be designed and operated to get a uniform application on variable widths of surfacing at predetermined and controlled rates of application. The dust-palliative water solution shall not be applied during rainy weather or if rain is anticipated within four hours following treatment. Just before application of the dust palliative, the roadway surface shall be loosened with a rock rake or blade grader to a depth of to 1 inch and lightly moistened with water.In areas where surfacing materials are absent, shaping and grading may not be required. The contractor shall take care not to disturb the subgrade, in areas where surfacing materials are absent, by pulling large rocks up with grading equipment. These areas may require only moistening before application of the dust palliative. Compaction of finished surfaces will be accomplished by equipment travel. Compliance with FAR Clause 52.222-06, (DAVIS-BACON ACT) and Davis Bacon Wage Determination No. CO970003, dated 3/7/97 will be required. (0112)

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