FLOOD04063

• County: Douglas
• Community: Douglas County, Unincorporated
• Basin: South Platte
• Title: Flood Insurance Rate Maps - Panel 455
• Date: 1/5/1996
• Prepared For: Douglas County
• 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 determined.

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

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.

Z ON E 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

OTHER FLOOD AREAS

ZONE X Areas of 500-year flood; areas of
lOa-year flood with average depths
of less than 1 foot or with
areas less th an 1 mile;
areas protected by from 100-
year flood.

OTHER AREAS

ZONE X Areas determined to outside 500-
year flood plain.

ZONE D Areas in which flood hazards are
u ndeterm ined.

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 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

This map is for flood insurance and flood plain management
purposes; it does not necessarily show all areas subject to flooding
in the community 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 flood ways were computed at cross sections
and interpolated between cross sections. The flood ways 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 Insurance
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
Douglas County Planning Department, County Administration
Building, 301 Wilcox Street, Castle Rock, Colorado 80104
(Map available for reference only, not for distribution)

INITIAL IDENTIFICATION:
FEBRUARY 7, 1975

FLOOD HAZARD BOUNDARY MAP REVISIONS:
SEPTEMBE R 6, 1977

FLOOD INSURANCE RATE MAP EFFECTIVE:
SEPTEMBE R 3, 1980

FLOOD INSURANCE RATE MAP REVISIONS:
Map revised September 30, 1987 to change flood plain boundaries,
zone designations, base flood elevations, corporate limits, scale,
cultural features, or map format.

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

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APPROXIMATE SCALE IN FEET
1000 0 1000
f----l f----l f----l ----.J

__ NATIONAL FLOOD INSURANCE PROGRAM

FI
FLOOD INSURANCE

DOUGLAS COUNTY,
COLORADO
(UNINCORPORATED AREAS)

PANEL 455 OF 500

(SEE MAP INDEX FOR PANELS NOT PRINTED)

PANEL LOCATION

COMMUNITY"PANEl NUMBER
080049 0455 C

MAP REVISED:
ER 30, 1987

SE

Federal Emergency Management Agency