The District of Columbia

FldPlnPly1985

FldPlnPly1985

by Federal Emergency Management Agency on 0//20/06/1

Keywords
About: Hydrology, flood zones, insurance, FEMA, Environmentally Sensitive Areas, Hydrography, River, Streams, Water, Wetlands
Taking place at: Washington, D.C., District of Columbia, DC, DC GIS, DCGIS

Abstract

The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMs) published by the Federal Emergency Management Agency (FEMA). Specifications for the horizontal control of Q3 Flood Data files are consistent with those required for mapping at a scale of 1:24000. Data automated from Federal Emergency Management Agency (FEMA) Flood Insurance Rate Maps (FIRM). Data was interpreted from FEMA and scribed to USGS 1:12,000 quadrangles manuscripts Generalized 100- and 500- year floodplains, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies.

All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.

METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.

Purpose

This data is used for the planning and management of Washington, D.C. by local government agencies.

Access constraints

Contact OCTO GIS. Any data obtained outside of OCTO GIS are unauthorized copies.

Use constraints

Data may only be used for District Government projects and not redistributed in any manner. OCTO makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.

Point of contact

GIS Data Coordinator
in D.C. Office of the Chief Technology Officer

441 4th St NW, Suite 930 South
Washington DC, 20001, USA

fax: (202) 727-5660
hours: 8:30 am - 5:00 pm

Credits

FEMA

Data accuracy

Accuracy
Data believed to be complete and accurate as of the time period cited. Subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.

Logical consistency
In process of validation by source and/or responsible agency.

Completeness
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.

Horizontal positional accuracy
In process of validation by source and/or responsible agency.

Vertical positional accuracy
N/A

Lineage / Sources


  • digital, geography and attributes
    Q3
Lineage / Processes
GIS Data Coordinator
in D.C. Office of the Chief Technology Officer

441 4th St NW, Suite 930 South
Washington DC, 20001, USA

fax: (202) 727-5660
hours: 8:30 am - 5:00 pm
Data automated from Federal Emergency Management Agency (FEMA)Flood Insurance Rate Maps (FIRM). Data was interpreted from FEMA and scribed to USGS 1:12,000 quadrangles manuscripts Generalized 100- and 500- year floodplains.

Published digital map was reprojected to NAD 83 meters from UTM and clipped to the DC boundary. No other changes were made.

All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.

Distribution

Most DC GIS datasets can be downloaded from "http://dcgis.dc.gov" on the data center page. Orders can also be made by contacting OCTO GIS at "dcgis@dc.gov", especially for datasets not available for download.

Distribution liability
OCTO makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a particular use, nor are any such warranties to be implied or inferred, with respect to the information or data furnished herein. Subject to terms and conditions of the Memorandum of Agreement. Memorandum of Agreement must have authorized signature.

Distributed by
GIS Data Coordinator
in D.C. Office of the Chief Technology Officer

441 4th St NW, Suite 930 South
Washington DC, 20001, USA

fax: (202) 727-5660
hours: 8:30 am - 5:00 pm

Entity

FldPlnPly1985

Attributes

  • SHAPE_LEN / ESRI
    Internal feature number.
  • SHAPE / ESRI
    Feature geometry.
  • Shape / ESRI
    Feature geometry.
  • OBJECTID
    unique id
  • FIPS
    FIPS code
  • COMMUNITY
    Community value
  • FIRM_PANEL
    FIRM panel number
  • QUAD
    Quadrant
  • FLOODWAY
    Floodway
  • ZONE
    Floodplain zone
  • COBRA
    COBRA
  • SFHA
    special flood hazard area
  • SYMBOL
    symbol
  • PANEL_TYP
    Panel type
  • ST_FIPS
    State FIPS code
  • CO_FIPS
    County FIPS code
  • STATE
    State name
  • PCOMM
    p comm
  • PANEL
    Panel id
  • LATITUDE
    latitude
  • LONGITUDE
    longitude
  • WEB_URL
    web link url
  • OBJECTID_1 / ESRI
    Internal feature number.
  • QUAD_UNIT
    quadrant unit
  • SOURCE / ESRI
    source
  • SHAPE_AREA / ESRI
    Area of feature in internal units squared.

Metadata

FGDC Content Standards for Digital Geospatial Metadata / FGDC-STD-001-1998 as of 20100727

Provided by
GIS Data Coordinator
in D.C. Office of the Chief Technology Officer

441 4th St NW, Suite 930 South
Washington DC, 20001, USA

fax: (202) 727-5660
hours: 8:30 am - 5:00 pm

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