(A) The subdivider shall provide the subdivision with an adequate storm water sewer system whenever curb and gutter is installed and whenever the evidence available to the Plan Commission indicates that the natural surface drainage is inadequate. When the surface drainage is adequate, easements for such surface drainage shall be provided. Deep open ditches for drainage are not permitted in the street, but where curb and gutter are not provided, a shallow swale with its low point at least three inches below the elevation of the subgrade of the pavement may be permitted.
(B) In a subdivision where curbs and gutter are not provided, the subdivider shall furnish one of the following types of improvements to facilitate roadside drainage and to assure suitable entrances for private driveways which are proposed to intersect the roadway:
(1) A corrugated iron pipe, at least 12 inches in diameter and 14 feet in length to be placed where required for each driveway; or
(2) A properly dipped or swaled concrete pavement, 14 feet in length, six feet in width and six inches thick, designed so as not to create a hazard to the under parts of automobiles, at the entrance of each driveway.
(Ord. passed 3-9-70) Penalty, see § 10.99