What is the recommended minimum slope for underground drainage conduits to be self-cleaning, and how deep should these be laid?
AnswerMin. slope of 0.3 percent, placed adequately deep to prevent damage from vehicles and freezing (3-4 feet in cold climates).
ARE 4.0 exam prep: SPD
AnswerMin. slope of 0.3 percent, placed adequately deep to prevent damage from vehicles and freezing (3-4 feet in cold climates).
ARE 4.0 exam prep: SPD
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