§ 18-26. Drainage easements and public stormwater facility ownership.

Drainage easements for those systems or portions of systems dedicated to the city for maintenance shall be provided in accordance with the following criteria:

(1)

Underground storm sewer easement. Where development is traversed by a drainage facility, adequate areas for storm drainage, including ponding, shall be allocated, conforming substantially with the lines of such drainage facility, and be of sufficient width to carry off storm drainage. Adequate access for maintenance and equipment will be required. For underground storm drain pipe the minimum width of the easement shall not be less than 20 feet or shall be the outside diameter of the pipe(s) plus eight feet on each side, whichever is the greater.

(2)

Open channel easement. For minor ditches which drain into a collector or main ditch or into a piped drainage system, the width of the drainage easement shall be equal to the maximum top width plus an additional 20 feet. In all cases, those ditches in excess of three feet in depth shall be piped.

(3)

Open swale easements. For minor swale ditches along lot lines draining a small area where street drainage is not involved and where the depth of a swale does not exceed one foot, a drainage easement not less than 15 feet in width shall be provided.

(4)

Submittal. All storm drainage easements shall be submitted in deed form to the city for acceptance and recording.

(5)

Clearing. The full width of all drainage easements shall be cleared as required by the city.

Systems or portions of systems dedicated to the city for maintenance that serve as a regional stormwater retention/detention facility shall be provided for in accordance with the following criteria:

(1)

Detention or retention ponds fee simple ownership. The pond footprint and an adjacent 15-foot top of bank maintenance area shall be deeded to the city under a fee simple title.

(Ord. No. 2007-51, 8-14-07)