A. Street And Alley:
1. Where alleys are not provided, easements not less than ten feet (10') wide shall be provided along each rear lot line, and alongside lot lines where necessary for use by public and private utilities. The planning commission 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.
2. Right of way widths in excess of the standards designated in this title shall be required whenever, due to topography, additional width is necessary to provide adequate earth slopes. Such slopes shall not be in excess of three to one (3:1).
B. Utility:
1. Easements centered on rear lot lines shall be provided for utilities (private and municipal). Such easements shall be at least ten feet (10') wide. Proper coordination shall be established between the subdivider and the applicable utility companies for the establishment of utility easements in adjoining properties.
2. In large lot or "residential estates" subdivisions, or where topographical or other conditions are such as to make impractical the inclusion of utilities within the rear lot lines, perpetual unobstructed easements at least ten feet (10') in width shall be provided along side lot lines with satisfactory access to the road or rear lot lines. Easements shall be indicated on the final plat.
C. Drainage:
1. Where a subdivision is traversed by a watercourse, drainageway, channel or stream, there shall be provided a stormwater easement or drainage right of way conforming substantially to the lines of such watercourse, and of such width, and/or construction as will be adequate for the purpose. Wherever possible, it is desirable that the drainage be maintained by an open channel with landscaped banks and adequate width, for maximum potential volume of flow.
2. Where topography or other conditions are such as to make the inclusion of drainage facilities within road rights of way impractical, perpetual unobstructed easements at least fifteen feet (15') in width for such drainage facilities shall be provided across property outside the road lines and with satisfactory access to the road. Easements shall be indicated on the final plat. Drainage easements shall be carried from the road to a natural watercourse or to other drainage facilities.
3. When a proposed drainage system will carry waste across private land outside the subdivision, appropriate drainage rights must be secured and indicated on the final plat.
4. The applicant shall dedicate, either in fee simple title, or by drainage or conservation easement, land on both sides of existing watercourses, to a distance to be determined by the planning commission.
5. Low lying lands along watercourses subject to flooding or overflow during storm periods, whether or not included in areas for dedication, shall be preserved and retained in their natural state as drainageways. Such land or lands subject to periodic flooding shall not be computed in determining the number of lots to be utilized for average density procedure, nor for computing the area requirements of any lot. (Ord. 1-10-85, 1-10-1985, eff. 2-10-1985)