(A) The topographic surveying required for a grading plan shall be prepared by either a professional engineer or land surveyor registered in the state. The required grading plan shall be prepared by a professional engineer registered in the state.
(B) Unless otherwise approved by the City Surveyor and Engineer, the plan shall include the following minimum requirements.
(1) The plan shall be drawn at a scale of no less than one inch equals 20 feet, except for properties exceeding two acres where a smaller scale may be accepted.
(2) The drawing size of the plan shall be no less than eight and one-half inches by 11 inches and no larger than 24 inches by 36 inches.
(3) All elevations shall be on the city datum and bench marks used shall be indicated.
(4) The plan shall show spot elevations of all critical locations.
(5) The plan shall show spot elevations at lot corners and at 25-foot intervals along the property lines or along the perimeter of the area to be regraded or landscaped.
(6) The plan shall show the elevations and location where drainage courses cross the property lines.
(7) The plan shall show existing contours for the entire tract on one-foot contour intervals, or one-half-foot contour intervals if the average slope of the tract is 2% or less, or five-foot contour intervals in ravine slopes.
(8) The plan shall show proposed driveway location and gradients.
(9) Where driveway culverts are required, the plan shall show proposed location, size and type of culvert, and shall show proposed entrance and discharge elevations and shall show ditch gradients at 25-foot intervals, 100 feet upstream and downstream from the proposed culvert, including inverts of existing upstream and downstream culverts.
(10) The plan shall show proposed contours at the same contour interval as required in division (B)(7) above.
(11) The plan shall show proposed building top of foundation; elevations of all entries; and elevations of proposed finished ground grade at all significant points around the proposed building.
(12) The plan shall show floodplain elevation, in conformance to the city floodplain regulations if said floodplain elevation is within three feet of the elevation of the lowest floor of existing or proposed structure.
(13) The plan shall show conformance to the city floodplain regulations.
(14) The plan shall show all proposed connections to public sewers and shall include invert elevations size and location of said public sewers.
(15) The plan shall show conformance to all ravine and bluff control regulations.
(16) The plan shall include provisions and a time schedule for restoring grass and lawns or for other erosion control measures.
(17) Three copies of the plan shall be submitted.
(18) A reproducible copy of the original plan shall remain in the possession of the property owners.
(19) The plan shall show location and disposition of downspouts and footing drain discharge.
(20) The plan shall include information on adjacent properties to show contours, drainage courses, structure locations, and foundation elevations, within 50 feet of the subject property.
(Prior Code, § 2-155) (Ord. 92-27, passed 6-1-1992)