FLOOD11583

• County: Montezuma
• Community: Montezuma County and Incorporated Areas
• Basin: San Juan/Dolores
• Title: FIRM - Montezuma County and Incorporated Areas - Panel 0425C
• Date: 9/26/2008
• Prepared For: Montezuma County
• Prepared By: FEMA
• Floodplain - Doc Type: Current FEMA Regulatory Floodplain Information

NOTES US RS
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. The community map repository should be
consulted for possible updated or additional flood hazard information.

obtain more detailed information in areas where Base Flood Elevations
and/or floodways have been determined, users are encouraged to consult
Flood Profiles and Floodway Data and/or Summary of Stillwater Elevations
tables contained within the Flood Insurance Study (FIS) report that accompanies
this FIRM. Users should be aware that BFEs shown on the FIRM represent
rounded whole-foot elevations. These BFEs are intended for flood insurance
fating purposes only and should not be used as the sole source of flood elevation
information. Accordingly, flood elevation data presented in the FIS report should
be utilized in conjunction with the FIRM for purposes of construction and/or
floodplain management.

3T 37' 30.00"

1360000 FT

Coastal Base Flood Elevations shown on this map apply only landward of 0.0'
North American Vertical Datum of 1988 (NA VD88). Users of this FIRM should be
aware that coastal flood elevations are also provided in the Summary of Stillwater
Elevations table in the Flood Insurance Study report for this jurisdiction. Elevations
shown in the Summary of Stillwater Elevations table should be used for
cQnstrugtiQnanci/Qr floogplain rnCln<:lgementpurposes when they are higher than
the elevations shown on this FIRM.

Boundaries of the floodways were computed at cross sections and interpolated
between cross sections. The floodways were based on hydraulic considerations
with regard to requirements of the National Flood Insurance Program. Floodway
widths and other pertinent floodway data are provided in the Flood Insurance
Study report for this jurisdiction.

1355000 FT

Certain areas not in Special Flood Hazard Areas may be protected by flood
structures. Refer to section 2.4 "Flood Protection Measures" of the Flood
Insurance Study report for information on flood control structures for this
jurisdiction.

The projection used in the preparation of this map was Universal Transverse
Mercator (UTM) zone 12. The horizontal datum was NAD 83, GRS80 spheroid.
Differences in datum, spheroid, projection or UTM zones used in the production of
FIRMs for adjacent jurisdictions may result in slight positional differences in map
features across jurisdiction boundaries. These differences do not affect the
accuracy of this FIRM.

1350000 FT

Flood elevations on this map are referenced to the North American Vertical Datum
of 1988 (NA VD 88). These flood elevations must be compared to structure and
ground elevations referenced to the same vertical datum. For information
regarding conversion between the National Geodetic Vertical Datum of 1929 and
the North American Vertical Datum of 1988, visit the National Geodetic Survey
website at http://www.ngs.noaa.gov/ or contact the National Geodetic Survey at
the following address:

NGS Information Services
NOAA, N/NGS 12
National Geodetic Survey
SSMC-2, #9202
1315 East-West Highway
Silver Spring, MD 20910-3282

1345000 FT

To obtain current elevation, description, and/or location information for bench
marks shown on this map, please contact the Information Services Branch of the
National Geodetic Survey at [phone] or visit its website at
http://www.ngs.noaa.govl.

Base Map information shown on this FIRM was provided in digital format by
Montezuma County. These data are current as of 2006.

This. map. reflects more detailed and up..to..date stream channel configurations
and floodplain delineations than those shown on the previous FIRM for this
jurisdiction. The floodplains and floodways that were transferred from the previous
FIRM may have been adjusted to conform to these new stream channel
configurations. As a result, the Flood Profiles and Floodway Data tables in the
Flood Insurance Study Report (which contains authoritative hydraulic data) may
reflect stream channel distances that differ from what is shown on this map.

1340000 FT ....

Corporate limits shown on this map are based on the best data available at the
time of publication. Because changes due to annexations or de-annexations may
have occurred after this map was published, map users should contact appropriate
community officials to verify current corporate limit locations.

Please refer to the separately printed Map Index for an overview map of the
county showing the layout of map panels; community map repository addresses;
and a Listing of Communities table containing National Flood Insurance Program
dates for each community as well as a listing of the panels on which each
community is located.

Contact FEMA Service Center at 1-800-358-9616 for information on
available products associated with this FIRM. Available products may include
previously issued Letters of Map Change, a Flood Insurance Study Report, and/or
digital versions of this map. The FEMA Map Service Center may also be reached
by Fax at 1-800-358-9620 and its website at http://www.msc.fema.gov/.

1335000 FT

If you have questions about this map or questions concerning the National Flood
Insurance Program in general, please call 1-877 -FEMA Map (1-877-336-2627) or
visit the FEMA website at http://www.fema.gov/.

Montezuma County Vertical Datum Offset Table

Flooding Source
Chicken Creek
Lost Canyon Creek
Mancos River

Vertical Datum
Offset (ft)
4.0
4.0
4.0

Example: To convert Chicken Creek elevations to NA VD 88, 4.0 feet were added to the NGVD 29 elevations.

1330000 FT

Panel location Map

1325000 FT

-,

1320000 FT

Ih.is pigitClIFIQ()dln~uranceRat? rylClP (PfIBryl) \tVas. pr()dllc?d thr()llgha
Cooperating Technical Partner (CTP) agreement between the State of Colorado
Water Conservation Board (CWCB) and the Federal Emergency Management
Agency (FEMA).

Additional Flood Hazard information and resources are
available from local communities and the Colorado
Water Conservation Board.

-1080 15' 0.00"
2205000 FT

2220000 FT JOINS PANEL 0175

2225000 FT

2230000 FT

221 0000 FT

2215000 FT

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Montezuma County
U nin corporated Areas
080285

747000mE

\ Montezuma County
I Unincorporated Areas
\ 080285

2

T. 38 N.
T. 37 N.

6

4

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2

JOINS PANEL 0675_
748000mE 749oo0mE

752000mE

I
746000mE

3T 30' 0.00"

-1080 15' 00.00"

745000mE

2235000 FT

1

ND

-10807'30.00"

SPECIAL FLOOD HAZARD AREAS (SFHAS) SUBJECT TO
INUNDATION BY THE 10/0 ANNUAL CHANCE FLOOD

3r 37' 30.00"

The 1%. annual chance flood (lOO-year flood), also known as the base flood, is the flood
that has a 1% chance of being equaled or exceeded in any given year. The Special Flood
Hazard Area is the area subject to flooding by the 1% annual chance flood. Areas of
Special Flood Hazard include Zones A, AE, AH, AO, AR, A99, V, and VE. The Base Flood
Elevation is the water-surface elevation of the 1% annual chance flood.

ZONE A
ZONE AE
ZONE AH

4167000mN

No Base Flood Elevations determined.
Base Flood Elevations determined.
Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood
Elevations determined.

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

ZONE AR Special Flood Hazard Area Formerly protected from the 1 % annual chance
flood by a flood control system that was subsequently decertified. Zone
AR indicates that the former flood control system is being restored to
provide protection from the 1% annual chance or greater flood.

ZONE AO

ZONE A99 Area to be protected from 1% annual chance flood by a Federal flood
protection system under construction; no Base Flood Elevations
determined.

ZONE V Coastal flood zone with velocity hazard (wave action); no Base Flood
Elevations determined.

4166000mN

ZONE VE

Coastal flood zone with velocity hazard (wave action); Base Flood
Elevations determined.

FLOODWAY AREAS IN ZONE AE

The floodway is the channel of a stream plus any adjacent floodplain areas that must be
kept free of encroachment so that the 1% annual chance flood can be carried without
substantial increases in flood heights.

OTHER FLOOD AREAS

_ 4165000mN

ZONE X

Areas of 0.2% annual chance flood; areas of 1 % annual chance flood with
average depths of less than 1 foot or with drainage areas less than 1
square mile; and areas protected by levees from 1 % annual chance flood.

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_ 4164000mN

OTHER AREAS

ZONE X Areas determined to be outside the 0.2% annual chance floodplain.
ZONE D Areas in which flood hazards are undetermined, but possible.

~ ~~'\] COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS

OTHERWISE PROTECTED AREAS COPAs)

CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas.
Floodplain boundary

............

Floodway boundary
Zone D Boundary
CBRS and OPA boundary

4163000mN

Boundary dividing Special Flood Hazard Areas of different Base
Flood Elevations, flood depths or flood velocities.

Base Flood Elevation line and value; elevation in feet*

Base Flood Elevation value where uniform within zone;
elevation in feet*

............... 513 --
(EL 987)

* Referenced to the North American Vertical Datum of 1988 (NAVD 88)

Cross section line

4162000mN

Transect line

9T 01' 30.00"
320 22' 30.00"

Geographic coordinates referenced to the North American
Datum of 1983 (NAD 83)

4275000mN

1000-meter Universal Transverse Mercator grid ticks,
zone 12

6000000 FT

SOOO-foot ticks: Colorado State Plane coordinate
system, south zone (FIPSZONE 0503), Lambert Conformal
Conic projection

4161000mN

DX5510
X

Bench mark (see explanation in Notes to Users section of
this FIRM panel)

M1.5

River Mile

.

MAP REPOSITORIES
Refer to Map Repositories list on Map Index

EFFECTIVE DATE OF COUNTYWIDE
FLOOD INSURANCE RATE MAP
SEPTEMBER 26, 2008

4160000mN

EFFECTIVE DATE(S) OF REVISION(S) TO THIS PANEL

For community map revision history prior to countywide mapping, refer to the Community
Map History Table located in the Flood Insurance Study report for this jurisdiction.

To determine if flood insurance is available in this community! contact your insurance
agent or call the National Flood Insurance Program at 1-800-638-6620.

4159000mN

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MAP SCALE 1" :: 2000'
2000 4000
FEET

METERS
1200

600

o

600

mall

PANEL 0425C

4158000mN

36

I

25

415loomN

(SEE MAP INDEX FOR FIRM PANEL LAYOUT)

CONTAINS:

COMMUNITY
MONTEZUMA COUNTY

4156000mN

NUMBER
080285

PANEL
0425

SUFFIX
C

4155000mN

T. 38 N.
T. 37 N.

Notice to User: The Map Number shown below should be
used when placing map orders: the Community Number
shown above should be used on insurance applications for the
subject community.

1

3T 30' 0.00"

-10807'30.00"

753000mE

Federal Emergency