The applicable Missouri Department of Transportation (MoDOT) or Metropolitan Sewer District (MSD) specification is listed on the pricing page for the applicable items. ● MoDOT Type 5 - 1” Minus aggregate shall be in accordance with the following gradation requirements - Sieve Percent by Weight Passing 1-inch 100 Passing, 1/2-inch 60-90 Passing, No. 4 35-60 Passing, No. 30 10-35 Passing, No. 200 0-15 ● MSD 1 - 1” Clean aggregate shall be in accordance with the following gradation requirements - Sieve Percent by Weight - 1” 100% max & min, ¾” 100% max - 90% min, ½” 60% max - 35%min, #100 10% max ● MSD 2 - 2” Clean aggregate shall be in accordance with the following gradation requirements - Sieve Percent by Weight - 2” 100% max & min,1 1/2” 100% max - 75% min, 1” 90% max - 50%min, ¾” 80% max- 30% min, ½” 55% max - 15%min, #100 10 % max. ● MSD 5 - Rock Blanket aggregate shall be in accordance with the following gradation requirements - Sieve Percent by Weight - 12” 90% max - 70% min, 6” 30% max-10% min, ½” 5% max ● MSD 6 Gabion Rock. Well-graded hard durable limestone shall be 10 inch maximum size (95% passing to 100% passing a 10-inch screen) and 4 inch minimum size. ● MSD 7 – Light Limestone Revetment. Light limestone revetment rock shall be at least 7 inches in size and all stones shall weigh no less than 25 pounds, and at least 75 percent shall weigh no less than 50 pounds. ● MSD 8 – Heavy Limestone Revetment. Heavy limestone revetment rock shall be at least 12 inches in size and all stones shall weigh no less than 50 pounds, and at least 60 percent shall weigh no less than 100 pounds.
