20230113 13535300 1.0 FGDC CSDGM Metadata FALSE sigegis.GISADMIN.FloodZone_0_2PCT_SeamlessCorrected -7489141.197500 -7260084.080300 2027018.583300 2098541.156600 1 002 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS[&quot;WGS_1984_Web_Mercator_Auxiliary_Sphere&quot;,GEOGCS[&quot;GCS_WGS_1984&quot;,DATUM[&quot;D_WGS_1984&quot;,SPHEROID[&quot;WGS_1984&quot;,6378137.0,298.257223563]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Mercator_Auxiliary_Sphere&quot;],PARAMETER[&quot;False_Easting&quot;,0.0],PARAMETER[&quot;False_Northing&quot;,0.0],PARAMETER[&quot;Central_Meridian&quot;,0.0],PARAMETER[&quot;Standard_Parallel_1&quot;,0.0],PARAMETER[&quot;Auxiliary_Sphere_Type&quot;,0.0],UNIT[&quot;Meter&quot;,1.0],AUTHORITY[&quot;EPSG&quot;,3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>2</ZTolerance><MTolerance>2</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 20220712 13415000 20220712 13415000 ItemDescription Andrew Martin FEMA - Mitigation Advisor//Federal Disaster Recovery Coordinator (877) FEMA-MAP 1800 South Bell Street Arlington VA 22202 20220712 ArcGIS Metadata 1.0 Andrew Martin FEMA Mitigation Advisor//Federal Disaster Recovery Coordinator (877) FEMA-MAP 1800 South Bell Street Arlington VA 22202 US http://www.jp.pr.gov/sigepr/advsmap Feature Class sigegis.GISADMIN.FloodZone_0_2PCT_SeamlessCorrected 2018-03-26 STARRII Federal Emergency Management Agency Washington, DC vector digital data The Federal Emergency Management Agency (FEMA) has developed the Advisory Flood Zones. They provide full geospatial representation of the coastal and riverine Advisory Base Flood Elevations (0.2% annual chance flood hazard), including coastal storm surge and wave components. The Advisory Flood Zones are intended to serve as the best available data for understanding coastal and riverine flood hazard risk and the elevations that communities should build to in order to protect themselves from future flood events. The Advisory Coastal A Zone is intended to serve as the best available data for understanding coastal flood hazard risk and the elevations that communities should build to in order to protect themselves from future coastal flood events. Areas within the Coastal A Zone are subject to waves equal to or greater than 1.5 ft but less than 3 ft. Post-disaster building inspections and scientific studies have shown that waves equal to and greater than 1.5 ft are sufficient to induce structural damage to many National Flood Insurance Program compliant structures on shallow or solid wall foundations. The FEMA Coastal Construction Manual and American Society of Civil Engineers recommend Zone VE construction practices inside of the Coastal A Zone. The 2018 International Residential Building Code requires higher building standards in Coastal A Zones. As part of the long term recovery effort,the ABFEs and the 0.2% Coastal A Zone are tools for Federal, State, and local officials, building officials, builders and architects, insurance professionals, and property owners to make informed decisions during rebuilding and to mitigate losses from future flood events, safeguard lives, and protect the private and public investment in rebuilding. Commonwealth of Puerto Rico, Puerto Rico, Culebra, Vieques U.S. Board on Geographic Names flood map FEMA environment, oceans, boundaries ISO 19115 Topic Category flood map environment, oceans, boundaries FEMA Commonwealth of Puerto Rico, Puerto Rico, Culebra, Vieques No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. This advisory data was disseminated by the FEMA. FIPS Pub 199 Standard Technical Controls This product is not be used as information to support regulatory floodplain designation or insurance ratings. Use of data is to provide the FEMA with guidance to disseminate to communities rebuilding after Hurricane Maria. The advisory elevations do not include freeboard and/or any additional safety factor to account for potential future increases of the coastal flood hazard due to sea level rise. Advisory mapping information was not adjusted to provide a seamless tie to any existing hazard Flood Insurance Study (FIS) mapping in adjacent areas. Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388 Publication date 2018-02-25 -67.276865 -65.219596 17.906302 18.521443 1 -67.276100 -65.218445 18.520313 17.910015 20180225 Processes were executed under STARRII Quality Management Plan. These data are a complete and continuous delineation, or revised delineation, of the 0.2% floodplain for Puerto Rico. No data were omitted from this dataset. The Advisory Flood Zones were developed from base data fully consistent with accuracy standards presented within FEMA’s Guidelines and Specifications for Flood Hazard Mapping Partners. These data were processed in a manner to generalize Advisory Elevation Zones. ABFE zone boundaries were produced from a generalized surface model of the advisory elevations, zones were subsequently merged, including the 0.2% Coastal A Zone, to provide a cartographically simple product. As such, no claims are made to the horizontal accuracy of those zone breaks. The Advisory 0.2% Coastal A Zone was developed from base data fully consistent with accuracy standards presented within FEMA’s Guidelines and Specifications for Flood Hazard Mapping Partners. 1.5 ft to 3 ft wave heights at transects are derived from the overland wave model, WHAFIS, and the line work between transects follows topographical and landuse information. The delineation is subject to the accuracy constraints of those data, and as with any engineering analysis of this type, variation is possible. feet -9999 The Advisory Flood Zones were developed from base data fully consistent with accuracy standards presented within FEMA’s Guidelines and Specifications for Flood Hazard Mapping Partners. These data were processed in a manner to generalize Advisory Elevation Zones. Flood hazard area boundaries, where shown, meet or exceed FEMA Floodplain Boundary Standards. The Advisory 0.2% Coastal A Zone was developed from base data fully consistent with accuracy standards presented within FEMA’s Guidelines and Specifications for Flood Hazard Mapping Partners. 1.5 ft to 3 ft wave heights at transects are derived from the overland wave model, WHAFIS, and the line work between transects follows topographical and landuse information. The delineation is subject to the accuracy constraints of those data, and as with any engineering analysis of this type, variation is possible. feet -9999 The ABFE flood elevation values and designations for 0.2% annual chance flood were developed using the 2017 USGS LiDAR data and new coastal modeling data developed for this study. For riverine areas, approximate level (also called Base Level Engineering (BLE)) analyses were performed to develop this flood hazard data. For coastal shoreline, the flood hazard boundaries were delineated for the portions of the shoreline only subjected to overland flooding. Shoreline subjected to wave runup were not included in this study, but the effective flood study modeling transects, obstruction polygons and erosion methods were adopted from the 1% effective study (except increase from 540 to 1030 sq ft for 0.2%) and brought forward into the final products. The WHAFIS model is incorporated into the Coastal Hazard Analysis Modeling Program (CHAMP), and the model output is contained in a CHAMP database format. New hydrologic and hydraulic analyses utilizing some of the traditional FEMA procedures and guidance were developed for riverine areas. Hydrologic analyses included statistical analyses of stream gage discharges and regression equations. The resulting water surface elevations at the modeling sections and the 2017 USGS LiDAR data were used to delineate the flood hazard boundaries. Hydraulic analyses was developed using HECRAS, one dimensional steady state back water analyses. The analyses includes cross sectional data for various reaches of the flooding sources, primarily streams ad river. The hydraulic model resulted in computation of water surface elevations for the 1% annual chance flood. The analyses included other flood frequencies such as 10%, 4%, 2% and 0.2% annual chance floods. Following is an overview of the process steps involved for coastal analyses. 1) Offshore wave characteristics representing a 0.2% annual chance storm were developed using the Shore Protection Manual (USACE, 1984) equations (equations 3-59 and 3-60) for slowly moving hurricanes 2)Wave setup associated with the 0.2% annual chance flood were developed for each modeled transect. 3) Setup values at the transect stations were manually interpolated between transects 4) A new total SWEL raster was developed using SWEL raster and the setup surface described in the previous steps. 4) The total SWEL raster was intersected with the 2017 USGS LiDAR to create a new 0.2% annual chance floodplain boundary. 5) Floodplain boundaries were cleaned and smoother for better cartographic presentation. 6) data were quality reviewed and correct; and 7) data were submitted to an independent quality review and corrected as needed. Based on the modeling results, locations were identified where 0.2% wave heights equal 1.5 ft along each WHAFIS transect. In between transects topographical and landuse information applied while interpolating the results from one transect to the next. The 0.2% Coastal A Zone is defined by the VE Zone boundary seaward and the LiMWA line landward. 2018-02-06 Dewberry Consultants, LLC 703-849-0100 8401 Arlington Blvd Fairfax VA 22031 US 2109 sigegis.GISADMIN.FloodZone_0_2PCT_SeamlessCorrected Feature class containing information associated with the dataset FEMA Feature Class 2109 OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. OBJECTID OID 4 10 0 SHAPE Feature geometry. Esri Coordinates defining the features. SHAPE Geometry 4 0 0 FLD_ZONE Zone designations included are: Zone VE, which designates areas in the coastal high hazard zone, subject to high velocity wave action with breaking waves 3 feet in height or higher based on the 0.2% annual chance flood elevation. Zone AE, which designates areas subject to coastal flood effects, subject to breaking waves less than 3 feet based on the 0.2% annual chance flood elevation. Zone A, which designates areas subject to riverine flood effects based on the 0.2% annual chance flood elevation. STARRII A, AE, VE flood zone classification FEMA Flood Zone String 17 0 0 V_DATUM The vertical datum used to measure elevations; Default - PRVD02; NP = Not provided for non-coastal, coastal AO and X zones STARRII PRVD02, NP vertical datum of the elevations STARRII Vertical Datum String 17 0 0 ZONE_SUBTY Zone sub-designations included are: Coastal A Zone, which designates areas subject to coastal flood effects, subject to breaking waves between 1.5 and 3 feet based on the 1% annual chance flood elevation. 0.2% Annual Chance Flood, which designates areas subject to flooding based on the 0.2% annual chance flood elevation. STARRII Coastal A Zone, 0.2% Annual Chance Flood flood zone sub-classification FEMA Zone Sub-Type String 100 0 0 ST_BFE_m 0.2% Advisory Base Flood Elevation indicates the expected coastal water surface elevation of a flood having a 0.2% annual chance of being equaled or exceeded in any given year. The value represents the combined flood elevation of both storm surge, wave setup, and overland wave action. Elevations are in units of meters. Advisory Flood Hazard Zone V or Advisory Flood Hazard Zone A are based on the 1% annual chance flood elevation. Null values (-9999) are reported for Shaded Zone X. STARRII 1.5 8.5 meters 0.2% ACF Static Base Flood Elevation in feet converted to meters Double 8 38 8 FLD_ZN_2PCT FLD_ZN_2PCT String 50 0 0 Depth_m Depth of flood, meters STARRII Positive real numbers that are calculated from DEM. Flood Depth in meters Double 8 38 8 FZn_02Pct_ID A unique identifier STARRII Positive real numbers Unique ID for 0.2 Pct ACF Zone Integer 4 10 0 GlobalID GlobalID GlobalID 38 0 0 SHAPE.STArea() SHAPE.STArea() Double 0 0 0 SHAPE.STLength() SHAPE.STLength() Double 0 0 0 dataset EPSG 6.18.3(9.3.1.2) Simple FALSE 2109 TRUE FALSE