FLOOD00870

• County: Adams
• County: Jefferson
• Community: Westminster
• Title: Flood Insurance Rate Maps - Panel 12
• Date: 4/2/1997
• Prepared For: Westminster
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

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SPECIAL FLOOD HAZARD AREAS INUNDATED
BY 100-YEAR FLOOD
ZONE A No base flood elevations determined.

ZONE AE Base flood elevations determ:ned.

ZONE AH Flood depths of 1 to 3 feet (usually areas of
ponding); base flood elevations determ ined.

ZONE AO Flood depths of 1 to 3 feet (usually sheet
flow on sloping terrain); average depths
determined. For areas of alluvial fan flood-
ing, velocities also determined.

ZONE A99 To be protected from 100-year flood by
Federal flood protection system under
construction; no base elevations determined.

ZONE V Coastal flood with velocity hazard (wave
action); no base flood elevations deter-
mined.'

ZONE VE Coastal flood with velocity hazard (wave
action); base flood elevations determined_

FLOODWAY AREAS IN ZONE AE

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OTHER FLOOD AREAS

ZONE X Areas of SOO-year flood; areas of
100-year flood with average depths
of less than 1 foot or with drainage
areas less than 1 square mile; and
areas protected by levees from 100-
year flood.

OTHER AREAS
ZONE X Areas determined to be outside 500-
year flood plain.
,ZONE D Areas in which flood hazards are
undetermined.

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Flood Boundary
Floodway Boundary

Zone D Boundary

Boundary Dividing Special Flood
Hazard Zones, and Boundary
Dividing Areas of Different
Coastal Base Flood Elevations
Within Special Flood Hazard
Zones.

^' '-' "~513

Base Flood Elevation Line; Ele-
vation in Feet*

Cross Section Line

(EL 987)

Base Flood Elevation in Feet
Where Uniform Within Zone*

RM7X

Elevation Reference Mark

*Referenced to the National Geodetic Vertical Datum of 1929

NOTES

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This map is for use in administering the National Flood Insurance Program;
it does not necessarily identify all areas subject to flooding; particularly
from local drainage sources of small size, or all planimetric features outside
Special Flood Hazard Areas.

Certain areas not in Special Flood Hazard Areas may be protected by flood
control structures,

Boundaries of the floodways were computed at cross sections and interpo-
lated between cross sections. The floodways were based on hydraulic
considerations with regard to requirements of the Federal Emergency
Management Agency.

Floodway widths in some areas may be too narrow to show to scale.
Floodway widths are provided in the Flood I nsurance Study Report.

Coastal base flood elevations apply only landward of the shoreline.

Elevation reference marks are described in the Flood Insurance Study
Report.

For adjoining map panels see separately printed Map Index_

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MAP REPOSITORY
City of Westminster
Department of Community Development
Engineering DiVision
4800 W. 92ND Avenue Westminster. CO 80030

(Maps available for reference only. not for d,stributlOn)

INITIAL IDENTIFICATiON:

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JUNE 7, 1974
FLOOD HAZARD BOUNDARY MAP REVISIONS:

APRIL 23,1976
FLOOD iNSURANCE RATE MAP EFFECTIVE:
SEPTEMBER 30, 1988

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FLOOD INSURANCE RATE MAP REVISIONS:
Map reVised MAY 1 1 to incorporate preViously Issued
letter of map reViSIOIl

To determine if flood insurance is available, contact an insurance
agent or call the National Flood Insurance Program at (800)
638-6620.

.

APPROXIMATE SCALE IN FEE.-T

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(SEE MAP INDEX FOR PANELS NOT PRINTED)

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