(A) Subdivision drainage plans shall be structured so as not to block or obstruct the natural drainage of adjoining areas.
(B) The following shall be the required standards to be observed for the design of easements in a subdivision.
(1) Easements of not less than 20 feet in width shall be provided on the front of all lot lines, and not less than ten feet in width shall be provided on each side of all rear lot lines and along side lot lines where necessary for storm and sanitary sewers, gas, water and other mains, and for electric and telephone lines or for other public utilities. Easements of greater width may be required along or across lots when necessary for the extension of main sewers or other utilities or where both water and sewer lines are located in the same easement.
(2) (a) Adequate easements for storm water drainage shall be established along any natural drainage channel and in such other locations as may be necessary to provide satisfactory disposal of storm water from streets, alleys and all other portions of the subdivision. All necessary drainage easements shall be furnished at no expense to the county and meet the following minimum standards:
1. Top channel widths from zero feet to 50 feet require top width plus 25 feet; and
2. Over 50-foot top channel widths require top widths plus 25 feet each side.
(b) Wider drainage easements may be required as is necessary to permit proper construction of drainage facilities based on the drainage system plan of the area. No subdivision shall block or obstruct the natural drainage of an adjoining area.
(3) Pedestrian easements, not less than ten feet wide, may be required where deemed essential to provide circulation, or access to schools, playgrounds, shopping centers, transportation and other community facilities.
(4) No tree, shrub or building shall be placed or erected in any easement for utility or drainage purposes or within the right-of-way of any street, except at the owner’s risk as to all costs for demolition, removal or reconstruction, and the beneficiaries of the easement rights may have free access to and use of the easements at any time.
(Ord. passed 10-14-2003; Ord. passed 11-10-2003; Ord. passed 11-14-2004; Ord. passed 9-11-2007)