| snippet:
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The County Floodplain layer shows the boundary of the County managed floodplain. |
| summary:
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The County Floodplain layer shows the boundary of the County managed floodplain. |
| extent:
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[[-77.6464126733606,37.3823715517884],[-77.1971196445682,37.7003743375448]] |
| accessInformation:
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| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E308 |
| typeKeywords:
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["ArcGIS","ArcGIS Server","Data","Map Service","Service"] |
| description:
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This layer is used to determine the location of the County manage floodplain and whether a specificlocation is within the boundary of the inundation zone for a specific flood event.Supplemental Information:County manages floodplain with drainage areas down to 100 acres, in contrast to the FEMA floodplains,which are typically limited to drainage area down to 1 square mile (640 acres).- FEMA floodplain is generally ≥ 1 square mile (640 acres)- Henrico County is generally ≥ 100 acres and Definitions: Special Flood Hazard Area (SFHA)o High risk area subject to flooding by the 1% annual chance flood identified by FEMA andHenrico County. 100‐Year Flood (Base Flood)o The 1% annual chance flood. The flood that has a 1% chance of being equaled orexceeded in any given year. Base Flood Elevation (BFE)o The water surface elevation of the 1% annual chance flood.Attributes: FLD_ZONEo Flood zone designation used by County to designate a Special Flood Hazard Area (SFHA).o Zones: ASpecial Flood Hazard Area (SFHA) subject to inundation by the 1% annual chanceflood event. No base flood elevations determined. AESpecial Flood Hazard Area (SFHA) subject to inundation by the 1% annual chanceflood event. Base flood elevations (BFE) determined. XAreas determined to be outside the 0.2% annual chance floodplain. FLOODWAYo A "Regulatory Floodway" means the channel of a river 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 a designated height. Y – Yes; in floodway N – No; not in floodway |
| licenseInfo:
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| catalogPath:
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|
| title:
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Community_SFHA_Boundaries |
| type:
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Map Service |
| url:
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| tags:
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[] |
| culture:
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en-US |
| portalUrl:
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| name:
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Community_SFHA_Boundaries |
| guid:
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FF27C421-2007-4856-9BD0-6B30641C627B |
| minScale:
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0 |
| spatialReference:
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NAD_1983_StatePlane_Virginia_South_FIPS_4502_Feet |