(A) The maximum design velocities for earth channels shall be eight feet per second for major channels, seven feet per second for secondary channels, and six feet per second for minor channels.
(B) The minimum velocities at design capacity for earth channels shall be three feet per second.
(C) Where the outlet velocity from a closed conduit or lined channel exceeds the maximum allowable velocity for earth channels, suitable protective works, such as riprap or an energy dissipator, shall be provided.
('66 Code, § 9-4.624) (Ord. 275-C-S, passed 3-11-75) Penalty, see § 9-4.903