Discussion and Review of Tiffin Municipal Code Revisions – Preparation for Setting the Public Hearing — Tiffin City Code - DRAFT

CHAPTER 160 FLOODPLAIN MANAGEMENT Wastewater treatment facilities (other than on-site systems) shall be provided with a level of flood protection equal to or greater than one (1) foot above the Base Flood Elevation. (3) New or replacement water supply systems shall be designed to minimize or eliminate infiltration of flood waters into the system. Water supply treatment facilities (other than on-site systems) shall be provided with a level of protection equal to or greater than one (1) foot above the Base Flood Elevation. (4) Utilities such as gas or electrical systems shall be located and constructed to minimize or eliminate flood damage to the system and the risk associated with such flood damaged or impaired systems. G. Storage of Materials and Equipment. Storage of materials and equipment that are flammable, explosive, or injurious to human, animal or plant life is prohibited unless elevated a minimum of one (1) foot above the Base Flood Elevation. Other material and equipment must either be similarly elevated or: (1) Not be subject to major flood damage and be anchored to prevent movement due to flood waters; or (2) Readily removable from the area within the time available after flood warning. H. Flood Control Structural Works. Flood control structural works such as levees, flood walls, etc. shall provide, at a minimum, protection from the base flood with a minimum of three (3) feet of design freeboard and shall provide for adequate interior drainage. In addition, structural flood control works shall be approved by the Department of Natural Resources. I. Watercourse Alterations. Watercourse alterations or relocations must be designed to maintain the flood carrying capacity within the altered or relocated portion. In addition, such alterations or relocations must be approved by the Department of Natural Resources. J. Subdivisions. Subdivisions (including factory-built home parks and subdivisions) shall be consistent with the need to minimize flood damages and shall have adequate drainage provided to reduce exposure to flood damage. Development associated with subdivision proposals (including the installation of public utilities) shall meet the applicable performance standards of this chapter. Subdivision proposals intended for residential use shall provide all lots with a means of access which will be passable by wheeled vehicles during the base flood. Proposals for subdivisions greater than five (5) acres or fifty (50) lots (whichever is less) shall include Base Flood Elevation data for those areas located within the Special Flood Hazard Area. K. Accessory Structures to Residential Uses. (1) Detached garages, sheds, and similar structures that are incidental to a residential use are exempt from the Base Flood Elevation requirements where the following criteria are satisfied. a. The structure shall be designed to have low flood damage potential. Its size shall not exceed six hundred (600) square feet in size. Those portions of the structure located CODE OF ORDINANCES, TIFFIN, IOWA - 1414 -