The subdivider shall provide a surface water drainage system constructed to the standards of the North Carolina Department of Transportation, as reflected in Handbook for the Design of Highway Surface Drainage Structures, 1973, subject to review by the Town Engineer.
(A) No surface water shall be channeled or directed into a sanitary sewer.
(B) Where feasible, the subdivider shall connect to an existing storm drainage system.
(C) Where an existing storm drainage system cannot feasibly be extended to the subdivision, a surface drainage system shall be designed to protect the proposed development from water damage.
(D) Surface drainage courses shall have side slopes of at least three feet of horizontal distance for each one foot of vertical distance, and courses shall be of sufficient size to accommodate the drainage area without flooding, and designed to comply with the standards and specifications for erosion control of the North Carolina Sedimentation Pollution Control Act, G.S. § 243-34.12, Chapter 113A, Article 4, and the N.C. Administrative Code Title 15, Chapter 4, and any locally adopted erosion and sedimentation control ordinances.
(E) The minimum grade along the bottom of a surface drainage course shall be a vertical fall of at least one foot in each 200 feet of horizontal distance.
(F) Streambanks and channels downstream from any land disturbing activity shall be protected from increased degradation from accelerated erosion caused by increased velocity of runoff from the land disturbing activity in accordance with the North Carolina Sedimentation Pollution Control Act, G.S. § 143-34.12, Chapter 113A, Article 4, and the North Carolina Administrative Code Title 15, Chapter 4.
(G) Anyone constructing a dam or impoundment within the subdivision must comply with the North Carolina Dam Safety Law of 1967 and the North Carolina Administrative Code Title 15, Subchapter 2K.
(H) In all areas of special flood hazards, all subdivision proposals shall have adequate drainage provided to reduce exposure to flood damage.
(Ord. 01-2000, passed 6-27-00)
Statutory reference:
The first statute cited in this section contains a typographical error, the intended citation being G.S. 143-34.12. In any event that statute has been repealed and did not relate to the state Sedimentation Pollution Control Act, G.S. Chapter 113A, Article 4. See also division (F) of this section.