Laserfiche WebLink
FLOODWAY FRINGE. That portion of the floodplain outside of the floodway . Flood <br /> fringe is synonymous with the term FLOODWAY FRINGE used in the Flood Insurance <br /> t study for Anoka Coun <br /> fir-- <br /> fleet . <br /> FLOODWAY. , thn <br /> . The bed of a wetland or lake and the channel of a <br /> watercourse and those portions of the adjoininq floodplain which are reasonably <br /> reguired to carry or store the regional flood discharge . <br /> FREEBOARD . Vertical distance between the 100 -year flood elevation or emergency <br /> overflow elevation of a water basin or watercourse and the elevation of the regulatory <br /> elevation of a structure . <br /> IMPERVIOUS SURFACE. A compacted surface or a surface covered with material <br /> ( i . e . , gravel , asphalt , concrete , Class 5 , etc . ) that increases the depth of runoff <br /> compared to natural soils and land cover . Including but not limited to roads , driveways , <br /> parking areas , sidewalks and trails , patios , tennis courts , basketball courts , swimming <br /> pools , building roofs , covered decks , and other structures . <br /> INFILTRATION. Water entering the ground through the soil . <br /> LAND-DISTURBING ACTIVITY. Any disturbance to the ground surface that , <br /> through the action of wind or water , may result in soil erosion or the movement of <br /> sediment into waters , wetlands or storm sewers or onto adjacent property . LAND= <br /> DISTURBING ACTIVITY includes but is not limited to the demolition of a structure or <br /> surface , soil stripping , clearing , grubbing , grading , excavating , filling and the storage of <br /> soil or earth materials . The term does not include normal farming practices as part of an <br /> ongoing farming operation . <br /> LANDLOCKED BASIN. A water basin lacking an outlet at an elevation at or below <br /> the water level produced by the critical duration flood event , generally the ten - day <br /> snowmelt event . <br /> LOW ENTRY ELEVATION . The elevation of the lowest opening in a structure . <br /> LOW FLOOR ELEVATION. The elevation of the lowest floor of a habitable or <br /> uninhabitable structure , which is often the elevation of the basement floor or walk - out <br /> level . <br /> MILL, RECLAMATION AND OVERLAY. Removal of the top layer ( s ) of an <br /> impervious surface ( e . g . roadway , parking lot , sport court ) by mechanical means , <br /> followed by the placement of a new layer of impervious surface , without exposure of the <br /> underlying native soil . <br /> 7 <br />