1 UNSPSC Code: 30111800 Aggregates Aggregate surfacing material (road rock), 1-inch minus must meet MODOT specifications 1006.2 and 1006.3 Grade A or B 1,000 TON 2 UNSPSC Code: 30111800 Aggregates Aggregate surfacing material (road rock), 1.5-inch minus, must meet MODOT specification 1006.2 and the following gradation: Sieve % Passing 1 1/2 inch 100% 1 inch 95 - 100% 1/2 inch 25 - 60% 1,000 TON 3 UNSPSC Code: 30111800 Aggregates Aggregate surfacing material (road rock), 2- inch minus, must meet MODOT specification 1006.2 and the following gradation: Sieve % Passing 2 inch 100% 1 1/2 inch 95 - 100% 3/4 inch 35 - 70% 3/8 inch 10 - 30% 1,000 TON 4 UNSPSC Code: 30111800 Aggregates Aggregate surfacing material (road rock), 4-inch minus, must meet MODOT specification 1006.2, must be well graded with a maximum size of 4" 1,000 TON 5 UNSPSC Code: 30111800 Aggregates Aggregate base material (roll stone base), must meet MODOT specification 1007.2, Type 1. 1,000 TON