1009.1 Scope. This specification covers material requirements for aggregate as specified for various drainage
systems.
1009.2 Quality. All aggregate shall be in accordance with Sec 1002, and shall be of the material and gradation
specified herein.
1009.3 Gradation.
1009.3.1 Grade 1. The aggregate shall be sand and shall be in accordance with Sec 1005.3.
1009.3.2 Grade 2. The aggregate shall be a washed sand-gravel mixture in accordance with the following
gradation requirements: Sieve SizePercent by Weight 1-inch 100 1/2-inch 55-90 No. 10 25-50 No. 40 10-30 No. 100 0-10 No. 200 0-3
1009.3.3 Grade 3. The aggregate shall be gravel, crushed stone, reclaimed concrete, or other approved material
meeting on the gradation requirements for Sec 1005.2.
1009.3.4 Grade 4. The aggregate shall be crushed limestone or dolomite or reclaimed concrete, in accordance
with the following gradation requirements: Gradation A Sieve SizePercent by Weight 1 1/2-inch 100 1-inch 95-100 1/2-inch 25-60 No. 4 0-10 No. 8 0-5 Gradation B Sieve SizePercent by Weight 1-inch 100 3/4-inch 90-100 3/8-inch 20-55 No. 4 0-10 No. 8 0-5
1009.3.5 Grade 5. The aggregate shall be crushed limestone or dolomite or reclaimed concrete, in accordance
with the following gradation requirements: Sieve SizePercent by Weight 1 1/2-inch 100 1-inch 95-100 1/2-inch 60-80 No. 4 40-55 No. 8 5-25 No. 16 0-8 No. 50 0-5
Aggregate for Drainage in other states
Get an email when 1009 changes
Missouri revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.