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13034400
1.0
FALSE
FloodZone_1PCT_Seamless
002
363965.968167
1077533.053825
683035.823369
906399.514108
1
0.000
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
NAD_1983_StatePlane_Puerto_Rico_Virgin_Islands_FIPS_5200_Feet
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20180512
15475700
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ItemDescription
Andrew Martin
FEMA - Mitigation Advisor//Federal Disaster Recovery Coordinator
(877) FEMA-MAP
1800 South Bell Street
Arlington
VA
22202
20180512
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
0.000
Shapefile
FloodZone_1PCT_Seamless
2018-02-25
STARRII
Federal Emergency Management Agency
Washington, DC
vector digital data
<DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN>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 (1% annual chance coastal flood hazard), including both storm surge and wave components. FEMA is providing an advisory floodway to provide a geospatial limit of the channel of rivers or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than the designated height. FEMA has developed the Coastal A Zone to approximate the extent of breaking waves less than 3 ft and equal to and greater than 1.5 ft in height for the 1-Percent-Annual-Chance flood events</SPAN></P></DIV>
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 floodway provides a cartographic delineation of the river channel area based on the effective riverine flood hazard and edited to serve advisory purposes. 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, floodways and 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.
U.S. Board on Geographic Names
Commonwealth of Puerto Rico, Puerto Rico, Culebra, Vieques
flood map
FEMA
ISO 19115 Topic Category
environment, oceans, boundaries
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
<DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN>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.</SPAN></P></DIV>
Esri ArcGIS 10.3.1.4959
Publication date
2018-02-25
-67.271756
-65.24321
17.927941
18.517023
1
-67.276811
-65.217011
18.522432
17.903487
20180225
Processes were executed under STARRII Quality Management Plan.
These data are a complete and continuous delineation, or revised delineation, of the 1% 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 to provide a cartographically simple product. As such, no claims are made to the horizontal accuracy of those zone breaks.
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
feet
-9999
The ABFE flood elevation values and designations for 1% annual chance flood were developed using the 2017 USGS LiDAR data and the coastal modeling data developed as part of the 2009 effective flood insurance 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 new boundaries were delineated for the portions of the shoreline only subjected to overland flooding. Shoreline subjected to wave runup were not redelineated as part of this study, but the effective flood study data was brought forward into the final products. Delineations are based on the effective Still Water Elevations, with wave setup added as part of this study. The resulting elevations are hereafter referred to as total Stillwater. Wave setup was additionally included because the effective study did not include it. New hydrologic and hydraulic analyses utilizing some of the traditional FEMA procedures and guidance were developed. 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. The full hazard elevation was then calculated and mapped into the presented ABFEs and zones. 1)Wave setup associated with the 1% annual chance flood levels were extracted from the effective study for each modeled transect. 2) Setup values at the transect stations were manually interpolated between transects as was originally done in the effective coastal analysis. 3) A new total SWEL raster was developed using effective SWEL raster, converted from Mean Sea level to NAVD88 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 1-percent 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.
2018-02-06
Dewberry Consultants, LLC
703-849-0100
8401 Arlington Blvd
Fairfax
VA
22031
US
0
FloodZone_1PCT_Seamless
Feature class containing information associated with the dataset
FEMA
Feature Class
0
FID
FID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
Shape
Geometry
0
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 1% 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 1% annual chance flood elevation. Zone A, which designates areas subject to riverine flood effects base on the 1% annual chance flood elevation. Zone AO, which designates areas subject to shallow flood effects (usually sheet flow on sloping terrain) based on the 1% annual chance flood elevation.
STARRII
A, AE, AO, VE
flood zone classification
FEMA
FLD_ZONE
String
17
0
0
Depth_m
Depth of flood, meters
STARRII
Positive real numbers that are calculated from DEM.
Depth_m
Double
19
0
0
FZn_1Pct_I
FZn_1Pct_I
Integer
10
10
0
SHAPE_Area
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
Shape_Area
Double
19
0
0
ST_BFE_m
1% Advisory Base Flood Elevation indicates the expected coastal water surface elevation of a flood having a 1% 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
1.2
14.3
meters
ST_BFE_m
Double
19
0
0
V_DATUM
The vertical datum used to measure elevations; Default - NAVD88; NP = Not provided for non-coastal X zones
STARRII
NAVD88, NP
vertical datum of the elevations
STARRII
V_DATUM
String
17
0
0
Shape_Leng
Shape_Leng
Double
19
0
0
ZONE_SUBTY
ZONE_SUBTY
String
100
0
0
dataset
ESRI
10.3.1
Simple
FALSE
0
FALSE
FALSE