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Rip Rap
1. Class I:
Stones shall weigh between 50 and 150 pounds each. At least 60 percent shall
weigh more than 100 pounds and approximately 10 percent may weigh 50 pounds
or less.
2. Class II:
Stones shall weigh between 150 pounds to 500 pounds each. At least 50
percent shall weigh more than 300 pounds, and approximately 10 percent may
weigh 150 pounds or less.
3: Class III:
Stones shall weigh from 500 pounds to 1,500 pounds each. At least 50 percent
shall weigh more than 900 pounds, and approximately 10 percent may weigh
less than 500 pounds.
4: Class AI:
Stones shall weigh between 25 and 75 pounds each, except that approximately
10 percent may weigh 25 pounds or less and 10 percent may weigh 75 to 100
pounds. |