FLOOD10606

• County: Larimer
• Community: Larimer County and Incorporated Areas
• Title: FIRM - Larimer County and Incorporated Areas - Panel 763F
• Date: 12/19/2006
• Prepared For: Larimer County and Incorporated Areas
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

NOTES TO USERS

1050 07' 30"
40039' 22.5"

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 Base Flood Elevations (BFEs)
and/or floodways have been determined, users are encouraged to consult the 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 rating 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.

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 Floodway Data table shown on
this FIRM.

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

FEMA recommends that a Flood Insurance Policy be purchased for structures in
areas where levees are shown as providing protection from the 1 % annual chance
flood. Flooding is not covered by standard propertylfire/dwelling insurance policies nor
is it covered by Homeowners Insurance, Renters Insurance, Condominium Owners
Insurance, or Commercial Property Insurance. Contact your insurance agent and local
floodplain administrator for further information.

1480000 FT

Visit http://www.fema.gov/pdflfhmlfrm gsah.pdf for information on levees and the risk
of flooding in areas shown as being protected by levees.

The projection used in the preparation of this map was State Plane Colorado North
(feet). 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.

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
htto:/lwww.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
[phone]

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 (301) 713- 3242, or visit its website at http://www.ngs.noaa.90v.

Base map information shown on this FIRM was provided by the Larimer County GIS
and Mapping Department. Additional input was provided by the City of Fort Collins
Geographic Information Service Division. These data are current as of 2005.

The profile baselines depicted on this map represent the hydraulic modeling baselines
that match the flood profiles in the Flood I nsurance Study report. As a result of improved
topographic data, the profile baseline, in some cases, may deviate significantly from
the channel centerline or appear outside the Special Flood Hazard Area.

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 the FEMA Map 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.qov.

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.

1475000 FT

Flooding Source
Dry Creek

Larimer County Vertical Datum Offset Table
Vertical Datum
Offset (ft) Flooding Source

3.0

Vertical Datum
Offset (ft)

Example: To convert Dry Creek elevations to NAVD 88, 3.0 feet were added to the
NGVD 29 elevations.

Panel Location Map

This Digital Flood Insurance Rate Map (DFI RM) was produced
through a Cooperating Technical Partner (CTP) agreement
between the State of Colorado Water Conservation Board and
the Federal Emergency Management Agency (FEMA).

3105000 FT

IC RAILROAD
UNION PACIF

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400 37' 30"
105007' 30"

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

16

ZONE X

+

Terry Lake Inlet

SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO INUNDATION

BY THE 10/0 ANNUAL CHANCE FLOOD

The 1% annual chance flood (100-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.

No Base Flood Elevations determined.
Base Flood Elevations determined.
Rood 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.
Special Flood Hazard Areas 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.
Area to be protected from 1% annual chance flood by a Federal flood protection
system under construction; no Base Flood Elevations determined.

3110000 FT Dry Creek

COUNTY ROAD 56

105005' 37.5"
400 39' 22.5"

ZONE X

14

ZONE A
ZONE AE
ZONE AH

ZONE AO

ZONE AR

Larimer County
Unincorporated Areas
080101

ZONE A99

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LEGEND

FLOODWAY AREAS IN ZONE AE

The f100dway 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.

4500000m N

ZONE X

OTHER FLOOD AREAS

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.

OTHER AREAS

ZONE X
ZONE 0

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

..

~ 513 .,."""".."

21

WILSON STREET

23

(EL 987)

22

Floodplain boundary
Roodway boundary
Zone D boundary

Boundary dividing Special Flood Hazard Area zones and
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*

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*Referenced to the North American Vertical Datum of 1988

Cross section line

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1040 50' 37.5" , 390 30' 00"

3180000 FT

4276000 mN

MISTY CREEK LANE

KK6400 X

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

SOOa-foot ticks: Colorado State Plane coordinate
system, North zone, Lambert Conformal
Conic projection

lOOO-meter Universal Transverse Mercator grid ticks[ zone 13

National Geodetic Survey bench mark (see explanation in
Notes to Users section of this FIRM panel)

MAP REPOSITORY
Refer to listing of Map Repositories on Map Index

IDEAL LANE

Larimer County
Unincorporated Areas
080101

EFFECTIVE DATE OF COUNTYWIDE
FLOOD INSURANCE RATE MAP
DECEMBER 19, 2006

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

4499000m N
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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.

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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.

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ZONE X

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250 0
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ZONE X

26

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27

4498000m N

Larimer County
Unincorporated Areas
080101

ZONE X

COUNTY ROAD 54G

33

CACHE LA
POUDRE DRIVE

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Little C
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ZONE X

Larimer County
Unincorporated Areas
080101

Little Cache La Poudre Ditch

JOINS PANEL 0976

35

400 37' 30"
1050 05' 37.5"
492OO0m E

490000m E

491000m E

34

NOTE: MAP AREA SHOWN ON THIS PANEL IS LOCATED WITHIN TOWNSHIP 8 NORTH, RANGE 68 WEST.

.

MAP SCALE 1" = 500.
500

1000
FEET
I METERS
300

I
150

PANEL 0763F

J

FIRM

FLOOD INSURANCE RATE MAP
LARIMER COUNTY,
COLORADO
AND INCORPORATED AREAS

PANEL 763 OF 1420

(SEE MAP INDEX FOR FIRM PANEL LAYOUT)

CONTAINS:
COMMUNITY
LARIMER COUNTY

NUMBER
080101

PANEL SUFFIX
. 0763 F

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.

MAP NUMBER
08069C0763F

EFFECTIVE DATE
DECEMBER 19, 2006
Federal Emergency Management Agency