FLOOD03325

• County: Logan
• Community: Logan County and Unincorporated Areas
• Basin: South Platte
• Title: FIRM - Logan County and Unincorporated Areas - Panel 100B
• Date: 9/29/1989
• Prepared For: Logan County
• Prepared By: FEMA
• Floodplain - Doc Type: Current FEMA Regulatory Floodplain Information

F

ND

SPECIAL fLOOD HAZARD AREAS INUNDATED
BY 100-YEAR fLOOD
ZONE A NO' base flO'O'd elevatiO'ns determ'ined.

ZONE AE Base flO'O'd elevatiO'ns determined,

:ZONE AH FIO'O'd depths O'f 1 to' 3 feet (usually areas of
PO'nding); base flO'O'd elevatiO'ns determined.

ZONE AO FIO'O'd depths O'f 1 to' 3 feet (usually sheet
flO'W O'n sloping terrain); average depths
determined. FO'r areas O'f alluvial fan flO'O'd-
ing, velO'cities alsO' determined.

1

ZONE A99 TO' be prO'tected frO'm 100-year flood by
Federal flood prO'tectiO'n system under
cO'nstructiO'n; nO' base elevatiO'ns determined.

ZONE V CO'astal flO'O'd with velO'city hazard (wave
actiO'n); nO' base flO'O'd elevatiO'ns deter-
mined.

ZONE VE CO'astal flO'O'd with velO'city hazard (wave
actiO'n); base flO'O'd elevatiO'ns determined.

fLOODWAY AREAS IN ZONE AE

OTHER FLOOD AREAS

ZONE X Areas of SOO-year flood; areas of
100-year flood with average depths
of less than 1 foot or with
areas less than 1 square mile;
areas protected by levees from 100-
year flood.

OTHER AREAS

:ZONE X Areas determined to be 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.

M513

Base Flood Elevation Line; Ele-
vation in Feet*

LIMIT OF STUDY
-- ZONE X

LIMIT OF STUD'!-

CHEYENNE COUNTY NEBRASKA
LOGANCOUNTY COLORADO

CHEYENNE COUNTY NEBRASKA
- -LOGAN COUNTY COLORADO

24

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a:: IX
,

@-

@

Cross Section Line

--

--

(EL 987)

Base Flood Elevation in Feet
Where Uniform Within Zone*

20

21

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\

22

23

RM7X

Elevation Reference Mark

24

19

20

*Referenced to the National Geodetic Vertical Datum of 1929

22

23

25

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This map is for use in
Program; it does not
particularly from local
features outside Special

the National Flood Insurance
all areas subject to flooding,
size, or all planimetric

Areas of special flood hazard lOO-year flood) include Zones A, Al,30,
AE, AH, AO, A99, V, VI-30 VE,

2

Certain areas not in Special Flood Hazard Areas may be protected by
flood control structures,

26

~

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 Federal
Emergency Management Agency,

25

26

27

EX

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.

Elevations reference marks are described in the Flood Insurance Study
Report,

30

29

28

3

33

34

For adjoining map panels see separately printed Map Index

MAP REPOSITORY
Office of Zoning Administrator
Logan County Courthouse
300 Ash Street
Colorado 80757
only, not for distribution)

INITIAL IDENTIFICATION:

APRIL 4, 1978

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34

35

36

31

32

33

FLOOD HAZARD BOUNDARY MAP REVISIONS:

31

32

FLOOD INSURANCE RATE MAP EFFECTIVE:
SEPTEMBER 29, 1989
FLOOD INSURANCE RATE MAP REVISIONS:

II
(

4

3

4

3

2

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::::>0
Ou
u~
zu
<(-
<-'~
0,<-'
-AO
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Refer to the FLOOD INSU RANCE RATE MAP EFFECTIVE date
shown on this map to determine when actuarial rates apply to
structures in the zones where elevations or depths have been estab-
lished.

T, 12 N.
T, 11 N.

4

1

6

5

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

ZONE X

ZONE X

5

APPROXIMATE SCALE IN FEET

I'
II 11 12
II 10
II 9 dI
d 8 NA TIONAL FLOOD INSURANCE PROGRAM
II
'\
\ 11
\1
II 8 9
7 (I ~
~ ~ CIl FI
;; 1
.,.,.
Ii cE FLOOD INSURANCE RATE
II
I ~
I
~ LOGAN COUNTY,
<5
tx:l 14 COLORADO
~
i 16 15
17 (UNINCORPORATED AREAS)
13
14

(SEE MAP INDEX FOR PANELS NOT PRINTED)

PANEL 100 OF 500

s:
~

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No.2
Q 23 24
22
20 21
\
24 PANEL LOCATION
ZONEX COMMUNITY..P ANEL
080110 01
19
EFFECTIVE
SEPTEMBER 29, 1
26
29 LIMIT OF
~~ 30 STUDY
25 CD (X) ------
30 .q-.q- Federal Emergency Management
a:: a::
JOINS PANEL 0180 PANEL 0185