FLOOD04548

• County: Adams
• County: Jefferson
• Community: Westminster
• Basin: South Platte
• Title: Flood Insurance Rate Maps - Panel 7
• Date: 4/2/1997
• Prepared For: Westminster
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

1

-I
I

<.0
o
8

I
I
L_

r

-,
I

I
I

-l
I
I

CORPORATE LIMITS

-l
1
I~
I~
<{
a::
o
a..
a::
o
IU

LIMIT OF DETAILED STUDY

ZONE X

ZONE AE
ZONE AH
ZON E AO
^ ZONE A99
z
G)
ZONE V
Z ON EVE

~
[;?

co-
C>).
r;;

North City Park Creek

ZONE X

LIMIT OF
DETAILED STUDY

ZONE X

Big Dry Creek-

ZONE X

North Branch Hylands Creek

~ \5379

~ '

TH

lFlS

Jr
()

o

ZONE X

CORPORATE LIMITS

ZONE X

:r: WEST 98TH
(J -................\
W J
~ I WAY~

~T 97TH
~ COURT

I,
I \

z
<t:
o
I ~
I~

CIJ
!::
:E
l::i
w
~
a::
o
Q..
a::
o
u

I
l

ZONE X

r

~

I
I
~
Z
::>
o
U
ZIU
o C/)
C/)I~
ffi <{
l..I... I::)
tb <{
J

L1MITOF DETAILED STUDY

~
Z
::>
o

f-
W
W
a:
I-
(f)

<t:
u
f-
::>

JOINS PANEL 0010

LEGEND

SPECIAL FLOOD HAZARD AREAS INUNDATED
BY 100- YEAR FLOOD

ZONE A 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 deter-
mined, For areas of alluvial fan flooding;
velocities also determined,

To be protected from 100-year flood by
Federal flood protection system under con-
struction; no base flood elevations deter-
mined,

Coastal flood with velocity hazard (wave
action); no base flood elevations determined,

Coastal flood with velocity hazard (wave
action); base flood elevations determined.

FLOODWAY AREAS IN ZONE AE

OTHER FLOOD AREAS

ZONE X

Areas of SOO-year flood; areas of l00-year
flood with average depths of less than 1 foot or
with drainage areas less than 1 square mile;
and areas protected by levees from 100-year
flood,

OTHER AREAS
Z ON E X Areas determi ned to be outside SOO-year flood-
plain.

ZONE D

Areas in which flood hazards are undeter-
mined.

UNDEVELOPED COASTAL BARRIERSt

~

~

Identified
1983

Identified
1990

Otherwise
Protected Areas

tCoastal barrier areas are normally located within or adjacent to special flood
hazard areas,

Floodplain Boundary
- -- - - Floodway Boundary

Zone D Boundary

Boundary Dividing Flood Hazard
Zones, and Boundary Areas of Dif-
ferent Coastal Base Flood Elevations Within
Special Flood Hazard Zones,

513-
@-----@
(EL 987)

Base Flood Elevation

Elevation in Feet*

Cross Section Line

Base Flood Elevation in
Within Zone*

where Uniform

RM7x
eM1.5

Elevation Reference Mark

River Mile

*Referenced to the National Geodetic Vertical Datum of 1929

NOTES

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, or all planimetric features outside Special Flood
Hazard Areas. The community map repository should be consulted for possible
updated flood hazard information prior to use of this map for property purchase
or construction purposes.

Coast.al base flood elevations apply only landward of 0.0 NGVD, and include the
effects of wave action; these elevations may also differ significantly from those
developed by the National Weather Service for hurricane evacuation planning.

Areas of special flood hazard (l00-year flood) include Zones A, AE, AH, AO, A99,
V, and VE.

Certain areas not in Sp~cial Flood Hazard Areas may be protected by flood
control structures.

co
o
o
o
--I
W
z
<t:
0..
(f)
Z
o
...,

Boundaries of the floodways 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.

Elevation reference marks are described in the Flood Insurance Study Report.

For adjoining map panels see separately printed Map Index.,

MAP REPOSITORY

City of Westminster Engineering Department
3031 West 76th Avenue Westminster, CO. 80030
(Maps available for reference only, not for distribution)
INITIAL IDENTIFICATION:

JUNE 7, 1974

FLOOD HAZARD BOUNDARY MAP REVISIONS:

APRIL 23,1976

FLOOD INSURANCE RATE MAP EFFECTIVE:

SEPTEMBER 30. 1988

FLOOD INSURANCE RATE MAP REVISIONS:
APRIL 2, 1991

Map revised APFilL 2, 1997 to add base flood elevations, to
change special flood hazard areas, to add roads and road names, to
add special ffood hazard areas (from Jefferson County, Colorado dated
August 5, 1986), and to incorporate previously issued letters of map
revision.

To determine if flood insurance is available in this community, contact your
insurance agent or call the National Flood Insurance Program at [phone].

.

400
F---i

APPROXIMATE SCALE

o
t---i t---i

400

. NATIONAL FLOOD INSURANCE PROGRAM

FIR
FLOOD INSURANCE RATE MAP

CITY OF
WESTMINSTER,
COLORADO
JEFFERSON AND
ADAMS COUNTIES

PANEL 70F 13

(SEE MAP INDEX FOR PA'NELS NOT PRINTED)

COMMUNITY..PANEL NUMBER
080008 0007 D

MAP
APRI

Federal