Port Washington City Zoning Code
ARTICLE XXII
Engineering Regulations
§ 485-86 Establishment of grades.
Every building hereafter erected, structurally altered or relocated shall be at a grade approved by the City Engineer as being in satisfactory relationship with the established street grades, or with the existing street grade where none is established, with particular consideration for proper drainage and safe vehicular access.
§ 485-87 Water surface profiles.
The City Engineer shall maintain a record of all water surface profiles, floodplain areas and elevations, elevations of underground utilities traversing any floodplain and of floodproofing measures established in the floodplain and shall obtain from the owner of any new structures placed in the floodplain elevations of those structures as actually built, certified by a registered engineer, architect or surveyor.
§ 485-88 Drainage.
A.
Adequate drainage required. No principal building shall be erected, structurally altered, or relocated on land which is not adequately drained at all times nor which is subject to periodic flooding, nor so that the lowest floor level is less than three feet above the highest anticipated seasonal groundwater level.
B.
Obstruction to drainage. The damming, filling, relocating or otherwise interfering with the natural flow of surface water along any surface water drainage channel or natural watercourse shall not be permitted except with approval of the Plan Commission.
C.
Building restricted adjacent to drainage channels or watercourses. No building other than a bridge, dam, boathouse, or revetment, subject to the aforesaid approval, shall be erected, structurally altered or relocated so that the lowest floor of said building is less than three feet above possible flood stage as determined by the City Engineer.
[Amended 7-18-2023 by Ord. No. 2023-14]
§ 485-89 Sanitation and water supply; preservation of topography.
[Amended 5-16-2023 by Ord. No. 2023-11]
A.
Except for legal nonconforming uses which existed before May 19, 2023, no principal building involving human use or occupancy shall be permitted on a lot unless provision is made and ensured for safe and adequate facilities for water supply and disposal of sewage by means of connection to the public water service and public sewer system.
B.
No outhouse or privy shall be hereafter erected.
C.
Preservation of topography. In order to protect the property owner from possible damage due to change in the existing grade of adjoining lands, and to aid in preserving and protecting the natural beauty and character of the landscape, no change in the existing topography of any land shall be made which would result in increasing any portion of the slope to a ratio greater than two horizontal to one vertical, within a distance of 20 feet from the property line, except where retaining walls are built pursuant to Article XI or with the written consent of the abutting property owner and with the approval of the Plan Commission, or which would alter the existing drainage or topography in any way as to adversely affect the adjoining property. In no case shall any slope exceed the normal angle of slippage of the material involved, and all slopes shall be protected against erosion.