_26Q0144_SS_-_DRAFT_SOW_1.pdf

This is a Statement of Work and Materials Specifications document for a federal contract solicitation (No. 140R6026Q0144) issued by the Bureau of Reclamation, Missouri Basin Region.

The contract requires the procurement and stockpiling of riprap and bedding materials for repairs to the Lower Yellowstone Bypass Canal near Glendive, Montana (coordinates: 47.261864, -104.540269). The vendor must deliver 25,000 tons of riprap material and 20,000 tons of bedding material to a single stockpile site during 2026-2027, with delivery commencing upon contract award and performance concluding November 30, 2027. The vendor is responsible for providing loader equipment and operators to consolidate delivery stockpiles into reasonably consolidated piles accessible for heavy equipment use, with loader time quoted separately on a CLIN basis from per-ton material pricing. Material may be delivered via double-side dump trucks or lesser configurations, and vendors must provide digital PDF load tickets indicating date, truck ID, and weight submitted with invoices. Biweekly invoicing is permitted. The riprap material must consist of dense, natural rock fragments with minimum specific gravity of 2.65 (ASTM C97), maximum 8 percent sulfate soundness loss (ASTM C88), and 5 percent maximum loss in freezing/thawing (AASHTO T103). Riprap shall conform to D100 16-inch gradation specifications with stones ranging from 92-205 lbs (100 percent), 41-86 lbs (50 percent), to 13-43 lbs (15 percent). Bedding material must be quarried stone, crushed cobbles, and crushed gravel with minimum 2.65 specific gravity, conforming to ASTM C33 standards, and well-graded per specified sieve requirements (4-inch through 3/8-inch). All test results including specific gravity, sulfate soundness, and soundness in freezing/thawing must be submitted by an independent lab three days prior to delivery for approval.