FLOOD10774

• County: Routt
• Community: Routt County and Incorporated Areas
• Title: FIRM - Routt County and Incorporated Areas - Panel 640D
• Date: 2/4/2005
• Prepared For: Routt County
• Prepared By: FEMA
• Floodplain - Doc Type: Current FEMA Regulatory Floodplain Information

N

USE S

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.

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

Coastal Base Flood Eievation :(SFEs) shown on this map apply only land-
ward of 0.0' North American Vertical Datum (NAVO). Users of this FIRM
should be aware that coastal flood elevations may also be provided in the
Summary of Stillwater Elevations table in the Flood Insurance Study report for
this community. Elevations shown in the Summary of Stillwater Elevations table
should be used for construction, and/or floodplain management purposes when
they are higher than the elevations shown on this FIRM.

Boundaries of the ftoodways were comput.ed 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.

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

The projection used in the preparation of this map is Universal Tranverse
Mercator iUTM) zone 13. The nOTbonta'Jdatum is NA083, GRS 1980
spheroid. Differences in datum, spheroid, projection or UTM zones used in
the production of ARMs for adjacent jurisdictions may result in slight positional
differences in map features across jurisdiction boundaries. These differences
do not affect the accuracy of the FIRM.

Flood elevations on this map are referenced to the North American Vertical
Datum of 1988. 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 www.ngs.noaa.gov or contact the National Geodetic Survey
at the following address:

Spatial Reference System Division
National Geodetic Survey, NOAA
Silver Spring Metro Center
1315 East-West Highway
Silver Spring, Maryland 20910
{SO 1 ) 713-3191

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

Sase map information shown on this FIRM was provided in digital format by
Routt County GIS Department.

~te 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 listingot 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.

An accompanying Flood Insurance Study report, letters of Map Revision or
Letters of Map Amendment revising portions of this panel, and digital versions
of this PANEL may be available. Contact the FEMA Map Semce Center at
the following phone numbers and Internet address for intomation on all related
products available from FEMA;

Phone: [phone]
FAX: [phone]
www.fema.gov/msc

If you have questit:m$ 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 www.fema.gov.

This map reflects more detailed and up-to-date stream channel configurations
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 may reflect stream channel distances that differ from what is
shown on this map.

LE

END

SPECIAL FLOOD HAZARD AREAS SUBJECT TO INUNDA TJON
BY THE 1 % ANNUAL CHANCE FLOOD EVENT

107016'00"
40033'45"

JOINS PANEL 0650

The 1 % annual chance flood (i00-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 Spacial
Aood 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
Aood Elevation is the water surface elevation o'f the 1 % annual chance flood.

15

ZONE A
ZONE Ai::
ZONE AH

DX5510X

107011 '15'"
40033'46#

~ 3:
00 I'
00 ro
0: 0:

/
18

ZONE AO

ZONE AR

+

+

4492000 M

ZONE ASS

ZONE V

ZONE VE

No base floodalavations 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.

Area of special flood hazard formerly protected from the 1 % annual
chance flood event by a flood control system that was subsequently
decertified. Zone Aft indicates that the former flood control system is
being restored to provide protection from the 1 % annual chance or
greater fJoodevent.

Area to be protected from 1 % annual chance flood event by a Federal
flo.od protection system under construction; no base fl.ood elevations
determined.

Coastal flaad zone with velocity ha;zard {wave acti.on); no base flood
elevations determined.

Coastal f10ad zone with velocity hazard (wave actian); base flood elevations
determined.

FLOODW A Y AREAS IN ZONE AE

lONE X

The fl.oodway is the channel of a stream plus any .adjacent floodplain areas that must be
kept free .of encreachment sa that the 1 % annual chance flood can be carried with.out
substantial increases in flood heights.

22

lONE X

23

19

ZONE X

+

+

4491000 M

ZONE X
ZONE D

OTHER FLOOD AREAS

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

OTHER AREAS

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

COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS

CBRS areas and OPAs are normaJJy located within or adjaoent to Special Flood Hazard Areas.

OTHERWISE PROTECTED AREAS taPAs)

Floodplain boundary
Aoodway boundary
Zone 0 boundary
CaRS andOPA boundary

[E]

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

+

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

+

+

4490000 M

(EL 987)

~513""~ ..... "

Base Flood Elevati'On line and value; elevation in 1eet*

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

*Referenced to the North American Vertical Datum of 1988

27

0---0
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Transect Une

Cross Section Line

Geographic coordinates referenced t'O the North American
Datum of 1983 {NAD .83}

30

97007'30", 32022'30'"

1 COO-meter Universal Transverse Meroator grid values, zone 13

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4276000M
600000 FT

5000-foot grid ticks

.. M1.5

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

River Mila

MAP REPOSITORY
Refer to Repository listing on Index Map

EFFECTIVE DATE OF COUNTYWIDE
FLOOD INSURANCE RATE MAP
FEBRUARY 4, 2005
EFFECTIVE CATEfS} OF REVIS10N{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 [phone].

34

+

4488000 M

ZONE X
\

4487000 Wi

~

I
T

I
T

~

40030'00"
107015'00"

Uv10339

5: 3=
OOIr-...
IX) co
0: 0:

311000 M

JOiNS PANEL 0805

40030'00"
107011'15"

313000 M

314000 M

.

MAP SCALE 1 n = 1000'

500 0 1000 2000
j l--i t--f j I !fEET
l---i l---i l-----I I METERS
300 300 500

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ROUTT COUNTY,
COLORADO
Ai'ID INCORPORATED AREAS

1

{SEE MAP INDEX FOR FIRM PANEL LA YOUT)

CONTAINS:

COMMUNITY

NUMBER PANEL SUFFIX

ROUTT COUNTY,
UNINCORPORATED AREAS

080156 0640 D

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

Federal Emergency Ivlanagement Agency I
)