FEMA Base Flood Elevations

This polyline layer indicates the approximate effective FEMA Base Flood Elevation (BFE) associated with the corresponding Special Flood Hazard Area (SFHA). Each line represents the 100yr (1% AEP) flood elevation at this location. The flood hazard identified became effective December 2010.本折线图层标注了与对应特殊洪水危险区（Special Flood Hazard Area, SFHA）相关的联邦紧急事务管理局（FEMA）有效基准洪水高程（Base Flood Elevation, BFE）。每条折线代表该点位处百年一遇（1% AEP）的洪水高程。本次标注的洪水风险信息自2010年12月起正式生效。