F.2.2
Culverts are classified according to which end controls the discharge capacity; the inlet or the outlet end. If water can flow through and out of the culvert faster than it can enter into the culvert, then culvert is under inlet control. If water can flow into the culvert faster than it can flow through and out, then it is under outlet control (see Figure F.9). This section details methods for analyzing conveyance capacity for culverts under inlet and outlet control.
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