The District expects to purchase an estimated quantity of 1000 cubic yards of ready-mixed concrete consisting of 2500 1/2 PSI (approximately 75% of quantity) and 3000 1/2 PSI ( approximately 25%), an estimated quantity of 2000 tons of 1-1/8" ABC, an estimated quantity of 1000 tons Asphalt Mix, 10,000 tons #2 mortar sand river washed and an estimated quantity of 200 tons Concrete Slurry. Deliveries will be taken on the basis of 6 cubic yards (minimum) or will be picked up by customer as needed or delivered if order meets 10 ton minimum.