FLOOD01738

• County: Arapahoe
• Title: U.S.G.S. Floodprone Quadrangle Maps - Piney Creek Quadrangle
• Date: 1/1/1955
• Prepared By: USGS
• Floodplain - Doc Type: Drawing/Map

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UNITED STATES
DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY

MAP OF

FLOOD-PRONE AREAS

PINEY CREEK QUADRANGLE
COLORADO
75 MINUTE SERIES (TOPOGRAPHIC)
1 04'3T30"
39'37'30"

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104'45'
39"37'30"

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Approximate boundaries of flood-prone areas are shown on this map. There is. on the
average, about 1 chance in 100 that the designated areas will be inundated in any year.
This information is important to public agencies and private citizens concerned with future
land developments.
The flood-prone areas have been delineated through use of readily available infonna~
tion on past floods rather than from detailed field surveys and inspections. In general,
the delineated areas are for natural conditions and do not take into consideration the pos-
sible effects of existing or proposed flood control structures except where those effects
could be evaluated. Flood areas have been identified for: (1) urban areas where the up-
stream drainage basin exceeds 25 square miles, (2) rural areas in humid regions where the
upstream drainage basin exceeds 100 square miles, (3) rural areas in semiarid regions where
the upstream drainage basin exceeds 250 square miles, and (4) smaller drainage basins,
depending on topography and potential use of the flood plains.
The 89th Congress, in House Document 465. recommended the preparation of flood-prone
area maps to assist in minimizing flood losses by quickly identifying the areas of potential
flood hazards. More detailed flood information may be required for other purposes such
as structural designs, economic studies, or formulation of land~use regulations. Such de-
tailed information may be obtained from the U.S. Geological Survey, other Federal agencies,
or State, local, and private agencies.

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SCALE 1:24000
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1 MILE

EXPLANATION

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Flood boundaries were estimated from:
Regional stage-frequency relations.

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I KILOMETER

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CONTOUR INTERVAL 10 FEET
DATUM JS. MfAN SEA LEVEL
Prepared by the U.S. Departme0t of the Interior.
Geological Survey, in cooperation with the
U.S. Department of Housing and Urban Development.
Federal Insurance Administration.

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OUAOR.l.NGlE LOCATION

PINEY CREEK. COLO,
N3930-Wl0437 5/7 5
Base by U.S. Geological Survey
]966

1973