FLOOD04979

• County: Rio Grande
• Community: Rio Grande County and Unincorporated Areas
• Basin: Rio Grande
• Title: FIRM - Rio Grande County and Unincorporated Areas - Panel 450B
• Date: 5/19/1987
• Prepared For: Rio Grande County
• Prepared By: FEMA
• Floodplain - Doc Type: Current FEMA Regulatory Floodplain Information

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RIO GRANDE COUNTY
cONEJ'os COUNTY

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LEGEND

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 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 lOO-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.

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Flood Elevation Line; Ele-
in Feet*

FLOODWAY AREAS IN ZONE AE

ZONE A-

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OTHER FLOOD AREAS

ZONE X Areas of SOO-year flood; areas of
lOa-year flood with
of less than 1 foot or
areas less than 1
areas protected by
year flood.

OTHER AREAS

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

ZONE 0 Areas in which flood hazards are
undetermined.

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Flood Boundary

Floodway Boundary

D Boundary

Dividing Special Flood
and Boundary
Areas of Different
Base Flood Elevations
Special Flood Hazard

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Section Line

(EL

Flood Elevation in Feet
Uniform Within Zone*

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Elevation Reference Mark

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*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 su bject to flood-
ing, 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 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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RIOGRAN~!~~~
CONEJOS COUNTY '+'<t:
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FLOOD HAZARD BOUNDARY MAP REVISIONS:
NONE

MAP REPOSITORY
Office of the County Commissioner, County Courthouse, 6th and
Cherry Streets, Del Norte, Colorado 81132 (Map available for
reference only, not for distribution)

INITIAL IDENTIFICATION:
APRIL 29,1977

FLOOD INSURANCE RATE MAP EFFECTIVE:
MAY1

Refer to Flood Insurance Rate Map Effective date shown below to
determine when actuarial rates apply to structures in zones where
elevations or depths have been established.

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 FEET
2000 0 2000
I f----j I----l - I

. NATIONAL FLOOD INSURANCE PROGRAM

FIR
FLOOD INSURANCE RATE MAP

RIO GRANDE COUNTY,
COLORADO
(UNINCORPORA TED AREAS)

PANEL 450 OF 450

(SEE MAP INDEX FOR PANELS NOT PRINTED)

PANEL LOCATION

COMMUNITY.PANEL NUMBER
080153 B

1

Federal Emergency