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<br />. <br /> <br />. <br /> <br />. <br /> <br />~~ <br /> <br />also can be provided by streamside property owners in retUrn for a community <br />channel maintenance program. <br />After the 1993 Midwest floods, easements were used on a large scale. <br />Federal programs funded the purchase of flood easements to reserve areas for uses <br />that are not affeded by flooding-grazing, wildlife habitat, and huntiDg clubs. <br />To Find Out More .. .. Techitical advice about preserving open space can <br />be found at the local, regional, or state planning, parks, conservation, and <br />recreation agencies. The Land Trust Alliance or local or regional land trust <br />organizations can help, too. <br /> <br />Roodplain development regulations <br /> <br />Zoning and open space preservation work to keep damage-prone development out <br />of hazardous or sensitive areas. Floodplain development regulations impose <br />construction standards on what is allowed to be built in the floodplain. They <br />protect buildings, roads, and other projects from flop<! damage and also prevent <br />the development from aggravating the flood problem. The three most oommon <br />types of floodplain regulations are subdivision ordinances, building codes, and <br />"stand-alone" floodplain ordinances. <br />Subdivision regulations-Subdivision regulations govern how land will be <br />subdivided into individual lots, often requiring that every lot have a buildable area <br />above the flood level. These regulations set construction and location standards for <br />the infrastructure built by the developer, including roads, sidewalks, utility lines, <br />storm sewers, stormwater retention or detention basins, and drainageways. These <br />standards, especially the stormwater and drainage requirements, should require the <br />subdivider to account for local drainage and flooding hazards. <br />Building codes-Flood protection standards for all new and improved or <br />repaired buildings can be incorporated into the local building code. They should <br />include criteria to ensure that the foundation will withstand flood forces and that <br />all portions of the building subject to damage are above,. or otherwise protected <br />from, flooding. <br />Floodplain ordinances-Most communities with a flood problem <br />participate in the National Flood Insurance Program (NFlP). The NFlP sets <br />minimum requirements for the communities' subdivision regulations and building <br />codes. Sometimes these are spelled out in a separate ordinance. The NFlP <br />minimum requirements are summarized in the box on the next page. Remember, <br />many states, regions, and communities have additional regulatory standards. <br />To Find Out More .. .. Technical advice about floodplain regulations can be <br />found at local, regional, or state planning agencies, the Federal Emergency <br />Management Agency, and the State NFIP Coordinator's office. <br /> <br />Watershed management <br /> <br />Several measures can help reduce the runoff of stortnwater and snowmelt <br />throughout the watershed. <br />Retention and detention regulations-Usually part of a subdivision <br />ordinance, these regulations require developers to build retention or detention <br />basins to minimize the increases in runoff caused by new impervious surfaces and <br />new drainage systems. A typical requirement is that ilO development may allow <br />stormwater to leave the property at a rate higher than it did before the parcel was <br />developed. <br /> <br />15 <br />