(A) The minimum pipe size for systems shall be 12 inches.
(B) A minimum flow velocity of three feet per second at full flow shall be maintained throughout the drainage system.
(C) A maximum flow velocity of eight feet per second at full flow shall be maintained throughout the drainage system.
(D) Manholes and inlets shall be placed at each junction, grade change, or direction change. The maximum spacing between each manhole and inlet shall be 300 feet.
(E) The minimum depth from grade for the top of any storm sewer shall be three feet. In any case where such three feet minimum cover cannot be maintained, an extra strength pipe shall be used.
(F) Permitted materials shall include PVC SDR-35, reinforced concrete or vitrified clay tile, from 12 to 36 inches in diameter. Pipes larger than 36 inches shall be reinforced concrete or steel plate.
(Ord. passed - -)