Service Description: The FIRM is the basis for floodplain management, mitigation,
and insurance activities for the National Flood Insurance Program
(NFIP). Insurance applications include enforcement of the
mandatory purchase requirement of the Flood Disaster Protection Act,
which "requires the purchase of flood insurance by property owners
who are being assisted by Federal programs or by Federally supervised,
regulated, or insured agencies or institutions in the acquisition
or improvement of land facilities located or to be located in
identified areas having special flood hazards" (Section 2 (b) (4)
of the 1973 Flood Disaster Protection Act). In addition to the
identification of Special Flood Hazard Areas (SFHAs), the risk zones
shown on the FIRMs are the basis for the establishment of premium rates
for flood insurance coverage offered through the NFIP.
Q3 Flood Data files convey certain key features from the existing
hard copy FIRM. Edge-matching errors, overlaps and deficiencies in
coverage, and similar problems are not corrected during digitizing or
post-processing. The Q3 Flood Data files are inteded to provide users
with automated flood risk data that may be used to locate SFHAs. More
detailed information may be obtained from the paper FIRM.
The original dataset was re-projected and merged for use in the Mohawk River Watershed Management Plan.
Service ItemId: fccead2b4dfc48b5ae322746317734bb
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
All Layers and Tables
Layers:
Description: The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMs) published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to the earth's surface using the Universal Transverse Mercator (UTM) projection and a zonal coordinate system (units in meters). Specifications for the horizontal control of Q3 Flood Data files are consistent with those required for mapping at a scale of 1:24000.Mohawk River Watershed Processing: The original datasets were processed for use in the Mohawk River Watershed Management Planning Process. Only 10 of the 14 counties in the Mohawk watershed had flood data available. Digital flood map data is unavailable for Hamilton, Fulton, Otsego, and Lewis Counties.Montgomery flood data is preliminary data and has not yet been approved.For more detailed metadata, go to: http://www.fgdl.org/metadata/fgdl_html/fema96.htm
Copyright Text:
Spatial Reference: 26918 (26918)
Initial Extent:
XMin: 409413.97763
YMin: 4620444.24404
XMax: 625950.56757
YMax: 4895131.14796
Spatial Reference: 26918 (26918)
Full Extent:
XMin: 419256.5499
YMin: 4632930.0124
XMax: 616107.9953
YMax: 4882645.3796
Spatial Reference: 26918 (26918)
Units: esriMeters
Child Resources:
Info
SharedTemplates
Supported Operations:
Query
ConvertFormat
Get Estimates
Create Replica