(A) (1) Where alleys are not provided, easements not less than 15 feet wide shall be provided along each rear lot line. A 7-1/2-foot easement alongside lot lines of individual lots may be required where necessary for use by public and private utilities.
(2) The Council may require aerial easements and easements of greater width for the extension of main storm and sanitary sewers and other utilities where it is deemed necessary.
(B) (1) Where a subdivision is traversed by a water course, drainage channel or stream, which drains 160 acres or more of land there shall be provided a right-of-way for drainage and public parks and public utility purposes, adequate to contain all of the runoff from a 50-year maximum flood and conforming substantially to the lines of the water course.
(2) The right-of-way shall include all the land within the subdivision that has an elevation below the 50-year maximum flood elevation which shall be calculated in accordance with, and shall be adequate to provide for, the drainage requirements of the regulations relating thereto.
(3) This shall not be interpreted as prohibiting the reclaiming of lands subject to flooding by filling or other appropriate methods.
(C) Specific drainage easement requirements shall be as follows:
(1) Where topography or other conditions are such as to make impractical the inclusion of drainage facilities within road rights-of-way, perpetual unobstructed easements at least 20 feet in width for the drainage facilities shall be provided across property outside the road lines and with satisfactory access to the road. Easements shall be indicated on the plat. Drainage easements shall be carried from the road to a natural watercourse or to other drainage facilities.
(2) A proposed drainage channel shall not carry water across private land outside the subdivision unless necessary drainage rights-of-way and easements
have been secured.
(3) The applicant shall dedicate, either in fee or by drainage or conservation easement of land on both sides of existing watercourses, a distance necessary to provide for overflow and future widening.
(4) The applicant shall dedicate all land having an elevation below the 50-year maximum flood elevation for the purpose of providing drainage, for Public Park or utility easement use. The land shall not be computed in determining the number of lots to be utilized for average density procedure nor for computing either the area requirement or the open space requirement of any lot.
(Prior Code, § 13-544) (Am. Ord. 1974, passed 8-16-19)