1177-013

• Designation Number: 336
• County: Boulder
• Community: Boulder County Unincorporated Areas
• Basin: South Platte
• Title: FIRM - Boulder County Unincorporated Areas - Panel 75
• Date: 7/15/1988
• Prepared For: Boulder County Unincorporated Areas
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

KEY TO MAP
500-Year Flood Boundary—
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100-Year Flood Boundary ,
Zone Designations
74
100-Year Flood Boundary
ZONE B
500-Year Flood Boundary—
Base Flood Elevation Line 513
With Elevation In Feet**
Base Flood Elevation in Feet (EL 987)
Where Uniform Within Zone**
Elevation Reference Mark RM7x
Zone D Boundary
o River Mile 9M1.5
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**Referenced to the National Geodetic Vertical Datum of 1929
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EXPLANATION OF ZONE DESIGNATIONS
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Z ZONE EXPLANATION f
A Areas of 100-year flood; base flood elevations and
flood hazard factors not determined.
AO Areas of 100-year shallow flooding where depths
ZONE A5 ZONE C are between one (1) and three(3)feet;average depths
ZONE B ZONE C ZONE A5 of inundation
nu da ion are shown, but no flood hazard factors
ZONE B Diversion Structure
o� �5200 �,'� 5170 yam° 514Z 15139 ZONE B 5100 _ _ _ T.4 N. __ AH Areas of 100n a(r)shallow three
flooding where depths ,
__ RIMER —�� T.3 N. are between one 1 and three 3 feet; base flood
y S2 5128 BOULDER CO aredetermined. ow but no flood hazard factors elevations are sh n
�0 5110 , r
ZONE 5108 5091 0 �lij All-A30 Areas of 100-ye4 flood; base flood elevations and
C flood hazard factors determined.
ZONE B h� ZONE C �a� 9� A99 Areas of 100-year flood to be protected by flood
5144 5140 ^a4� � ZONE z�i� ``z�O. 4 tr oC protection system under construction; base flood
lily+�
�� �` Little t B ��oG �� elevations and flood hazard factors not determined.
a ��
o Thompson 5 20 's'�
Divecrsu'oe River h � � 5118 5 5 ` B Areas between limits of the 100-year flood and 500-
2 Structure year flood;or certain areas subject to 100-year flood-
River
ing with average depths less than one(1)foot or where
1 4 3 2 the contributing drainage area is less than one square
6 { c'i mile;or areas protected by levees from the base flood.
(Medium shading)
Highland NO, 2 C Areas of minimal flooding.(No shading)
Q y cN D Areas of undetermined, but possible, flood hazards.
w ReS@rVOir H oj1 V Areas of 100-year coastal flood with velocity (wave
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action);base flood elevations and flood hazard factors
tr
I-. QQ I not determined.
s Culver w i �� BOULDER COUNTY Dlrcr+ sy V1-V30 Areas of 100-year coastal flood with velocity (wave
Lateral I action);base flood elevations and flood hazard factors
OWST determined.
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�! HIGHLAND NOTES O USER
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ZONE C �: ,1 _ ,w _ ,� .. -- _ __ --- ..__. . �- _ - - Areas rteSAaIYA be=,
}- sg.� t. ,t..,. • . r< , I _-. erTainareasnofintheSPecialFloodHazard Cz0 ultnaY
0 1�' : I tl � .� •s .l+j l MN4 N
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protected by flood control structures.
CRYSTAL ~"
ea+ - ¢ - This map is for use in administering the National Flood Insurance Program;
J co D I it does not necessarily identify all areas subject to flooding,particularly
0 4 I� from 2 ~ wASATCH ROAD SpecaolFloodlHag2dAreasofsmallsize,orallplanimetricfeaturesoutside
Q (� �' 1 n Divide 11 Coastal base flood elevations apply only landward of the shoreline
a11 12 ] $ Imo` Reservoir 12 shown on this map.
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` F F I I For adjoining map panels,see separately printed Index To Map Panels.
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F INITIAL IDENTIFICATION:
WOODLAND m OQ FEBRUARY 1, 1979 • .
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_ h I FLOOD HAZARD BOUNDARY MAP REVISIONS:
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T R LAKE
2
cc
►-�
F W
W Walker FLOOD INSURANCE RATE MAP EFFECTIVE:
DITCH
H cc Res• 9� I FEBRUARY 1, 1979
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F Z I FLOOD INSURANCE RATE MAP REVISIONS:
14 �' 13 18 m 1] 16 W 15 0 14 13 oT Map revised July 15,1988 to update corporate limits,to decrease base
•: = 2 C7 ey flood elevations,to increase base flood elevations,to change base flood
= F ? elevations, to add base flood elavations, to add special flood hazard
0�- Rough and areas, to change special flood hazard areas, to change zone
O a) i �� designations,and to add roads and road names.
= r` co z Ready Ditch x J
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VERMIL!.ION ROAD
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N ITo determine if flood insurance is available in this community,
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contact your insurance agent,or call the National Flood Insurance p
c 66 Program,at(800) 638-6620.
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W SEE PANEL 0061 SEE PANEL 0062
Z PRIME URBANIZED AREA BOUNDARY_
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CITY OF W APPROXIMATE SCALE IN FEET
LONGMONT z000 0 2000
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rs ,. b -•feaAe•ax,.. '2 F'r::s� }-::i...IM x :_� ..m.-.a...:
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26 "' 25
;. NATIONAL FLOOD INSURANCE PROGRAM
CORPORATE LIMITS = y°' HETZEL
_ LAKE
Hetzel
Z� 17TH AVENUE - Lake
35 Rough and FIRM
}, 9" 36
Ready Ditch
FLOOD INSURANCE RATE MAP
CITY OF
LONGMONT
BOULDER COUNTY,_
COLORADO
(UNINCORPORATED AREAS)
0
PANEL 75 OF 225
(SEE MAP INDEX FOR PANELS NOT PRINTED) '
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w SEE PANEL 0063 SEE PANEL 0064 SEE PANEL 0068
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COMMUNITY-PANEL NUMBER
080023 0075 B
�G� Y M9N9 MAP REVISED:
JULY 15, 1988
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Federal Emergency Management Agency
JOINS PANEL 0130 JOINS PANEL 0127
_�. • JOINS PANEL 0150