FLOOD10565 ‎(2)‎

• County: Boulder
• Community: Boulder County and Incorporated Areas
• Title: FIRM - Boulder County and Incorporated Areas - Panel 278F
• Date: 6/2/1995
• Prepared For: Boulder County
• Prepared By: FEMA
• Floodplain - Doc Type: Current FEMA Regulatory Floodplain Information

105007'30"
40013'07"

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40011' 15"
105007'30"

17TH AVENUE

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JOINS PANEL 0300

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SPECIAL FLOOD HAZARD AREAS INUNDATED
BY 100-YEAR FLOOD
ZONE A No base flood elevations determined.

ZONE Ai:

Base flood elevations determined.

105005'37"
40013'07"

Flood
of

ZONE AH

of 1 to 3 feet iusually areas
base flood elevations

ZONE AO Flood depths of 1 to 3 feet (usually sheet
flow on terrain); average depths
determined. areas of alluvial fan flooding,
velocities also determined.

ZONE A99

ZONE V

Coastal flood with
action); no base flood

hazard (wave
determined.

ZONE VE

Coastal flood with
action); base flood

hazard (wave
determined.

FLOODWAY AREAS IN ZONE AE

OTHER FLOOD AREAS

ZONE X Areas of SOO-year flood;
flood with depths
'1 foot or with
1 square mile; and
levees from 100-year flood.

OTHER AREAS

ZONE X Areas determined to
floodplain.

ZONE 0

Areas in which
undetermined.

UNDEVELOPED COASTAL

Identified
1983
Coastal barrier
Flood Hazard

Identified
1990
normally located wthin

Otherwise
Protected
adjacent to Special

Flood

Floodway Boundary

Boundary

Dividing
Coastal
Within
Zones

Dividing Special Flood
Zones. and Boundary
IAreas of Different
Base Flood Elevations
Special Flood Hazard

~513~

Flood Elevation Line;
Elevation in Feet. See Map Index
for Elevation Datum.

Cross Section Line

Base Flood Elevation in Feet
Where Uniform Within Zone.
See Map Index for Elevation Datum.

Elevation Reference Mark

987)
RM7X
M2

River Mile

Horizontal Coordinates Based on North
American Datum of 1927 (NAD 27)
Projection.

97007'30", 32022'30"

NOTES

This map for use in administering the National Flood Insurance Program;
it does not necessarily identify all areas subject to flooding, particularly from
local sources of small size, or all planimetric features outside
Special Hazard Areas.

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

J\reas of Special Flood Hazard (100-year flood) include Zones A AE, AH, AD.
A99, V, and VE.

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

Boundaries of the floodways were computed at cross sections and
interpolated between cross sections. The floodvvays were basec on
considerations with regard to reouirements of the Federal
Management Agency.

Floodvvay widths in some areas
F100dway widths are provided in

be too narrow to show to scale.
Flood Insurance Study Report.

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boundaries of Coastal Barrier
and Otherwise Protected Areas established
Barrier Improvement Act of 1990 (PL 101-591)

limits shown are current of the date of this The user
contact appropriate community officials to determine corporate
limits have changed subsequent to the issuance of this map.

For community revision history
Section 6.0 of the Insurance

to countywide mapping, see
Report.

For adjoining map panels and base map source
Map Index.

separately printed

MAP REPOSITORY
Refer to Repository Listing on Map Index

EFFECTIVE DATE OF
COUNTYWIDE FLOOD INSURANCE RATE MAP:

JUNE 1995

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

Refer to the FLOOD INSURANCE MAP EFFECTIVE DATE shown
on this map to determine when actuarial rates to structures in
zones where elevations or depths have been

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

.

APPROXIMATE SCALE IN FEET

.

flOOD INSURANCE PROGRAM

080023

F

40011'15"
105005'37"

Federal Emergency Management Agency