20230914 13401200 1.0 TRUE Coastal_Water_Surface_Grid_01_PCT The layers presents the predicted water surface elevation during a 1-percent-annual-chance flood (also referred to as a 100-year flood) in Baltimore County. This grid is derived from FEMA's Flood Risk Database. Baltimore County Coastal Depth Grids FEMA Map Service Center, 2020: Flood Risk Database-FRD_240010_Coastal_Geodatabase, 12/16/2014; https://msc.fema.gov/portal/advanceSearch