FLOOD09236

• County: Statewide
• Community: Statewide
• Basin: Statewide
• Title: Urban Drainage and Flood Control District Index Map - Side 1
• Date: 4/1/1981
• Prepared For: CWCB
• Floodplain - Doc Type: Drawing/Map

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COUNTY

ALA"OSA

ARCHULETA

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1110 GRANDE

ROU"

SAGUACHE
SANJUAN
SAN"IGUEL

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AREAS.PUtTEVILLE
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CITYfTOWIIl

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fLOOD HAZARD ANALYSES
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flOOD PLAIH INFDRMATlON
flOOD PLAIN INfORMATION
flOOD INSURANCE STUDY
flOOD PLAIN IHfORMATIOH
flOOD HAZARD ANALYSES
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flOOD INSURANCE STUDY

flOOOINSUAAHCESTUDY
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fOOOINSURAIICESTUDY
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flOODPLAIN INFORMATION
flDOOINSURAHCESTUOY

flOODPLAININfORMATlON
fLOODPLAINIHfORMATlOH
fLDDDtNSURANCESTUOV
FLOOD NAZARD IHFR"OATlON

flODDPLAINIHfDIIMATION
FlDODPLAININfOIl"ATION
flOOD PLAIN IHfDllMATlON
flOOOPLAININfOR"ATlON
flOOD PLAIN INfORMATION
flOOOINSURANCESTUOY
flOOO HAZARD INfDR..AT10N
flOODINSURAHCESTUDY

flOOD INSURANCE STUDY
flOOD HAZARD INfOR..ATIDN
flDODNAZARDINfOR.....TIDN
fLoOOPLAINIHfOR..UION
fLOODIN5URANCESTUDY
flOOONAZARDINfDR..ATION
flOOD INSURANCE STUDY
fLOOD INSURANCE STUDY

ENGINEER

CO..P.
DATE

INPROG.
~lll,lQ.JlIH,-- -1/11
USDA.SCS 9/11

CAMP.DRESS6"cK,INC INPROG.

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CAMP.DRESS6M~K..INC

USACE,SACRA.OIST.
MEUR,SERAfa"EUR

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GIHG ASSOC., INC. 9/19
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20
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DESICKATION, HUN8Ef1 , DATE

82.11/15/77
(nl_3/U/H){l32_1/31/19)(156_3/1~/80)
,

1CI

66.111/11
1'1'1 2ht!-f.f

127.lIJI/19

U-2126t:'5
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MISSION OF THE COLORADO WATER CONSERVATION BOARD

The ColoradO Water Conservatlon Board was leg1sIatively created in
1937 for the expressed general purpose ". . . to promote the conservation
of the waters of the State of ColOrado in order to secure the greatest
utillzation of such waters and the utmost prevention of floods. . .n

SPECIFIC LEGISLATIVE CHARGES REGARDING THE FLOODPLAIN INFORMATION
AND MANAGEMENT PROGRAM ARE:

"To devise and formulate methods. means, and plans for bringing about
the greater utilization of the waters of the state and the prevention of
flood damages therefrom."

"To designate and approve l!Itorm Or floodway runoff channels or basins."

"To make such designations available to legislative bodies of cities
and incorporated towns: to county planning commissions and to boards of
adjustment of cities: and counties of the State,"

"To assist local governments on a continuing basis in the specific
identification of floodplain hazard areas,"

"To assist local governments on a continuing basis in determining what
use and occupation may be permitted in designated floodplain hazard areas."
"To coordinate and prescribe standards for all floodplain studies
conducted pursuant to land use planning, including those conducted by
federal, local, and other state agencies. to the end that reasonably
uniform standards can be applied to the identification and designation
of all floodplains within the state."

STUDIES WITHIN THE STATE

The ColoradO water Conservation BOard provides financial and
technical assistance to local governments in the development of floodplain
information studies. The Board is the state coordinator of all floodplain
studies, flOOd insurance prOgrams. and floodplain management activities
with1n the State of ColOrado. All requests fOr study assistance should be
addressed to:

ColoradO Water Conservation BOard
823 state centennial BU11ding
1313 Sherman Street
Denver, Colorado 80203

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PURPOSE OF MAP

This index map of available floodplain information in Colorado was
prepared by the ColoradO Water Conservation Board. Passage of bOth state
and federal legislation ai~ed at reducing flood losses has created study
activity at all levels of government; therefore, the status of
floodplain information in ColoradO is continuously changing. This map
shows reaches of streams in Colorado for which detailed floodplain
information is known to be available and where studies are in progress,
The map insert shOws the status of flOodplain studies within the Urban
Drainage and Flood Control District. The accompanying table lists
streams by county which have been. or are being studied, along with the
type of study and those responsible for study direction and engineering.
A published floodplain information ,report examines flood history of
the area. explains the flood potential, and identifies flood hazard
areas on a map for use by the publlC and by state and local governments.
Reports are published to encourage and guide wise use of the state's
floodplains and to prevent loss of life and reduce property damage,
The demand for floodplain informat10n is continuously increasing,
and many Of the reports are only published in small quantities for
limited distribution, Thus, a library of COmpleted floodplain information
studies is maintained by the Board. Persons needing access to. or
information on, a given report should contact appropriate county or city
officials. the study director, the agency that prepared the report or
this off ice.

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In addition, the Board maintains a list of special publications
and technical manuals frOm federal agencies, colleges and universities
and professional organizations regarding flood-related matters,
hydraulic and hydrologic methods, floodproofing, floodplain management
and the flood insurance program, Copies of these publications are
available from the issuing agency,

SPECIAL PUBLICATION8 RELATING TO
FLOODS AVAILABLE THROUGH THE CWCB

1 Manual for Estimatinq Flood Characteristics of Natural-Flow
Streams in Colorado.
Technical Manual No. I, J. F, McCain and R, D, Jarrett.
1976. Provides a simplified, regional method for determining
approximate flood limitlJ of flood-prone areas along streams
in Coloraeo.

2 Manual for Local Governn~nts - FlOodplain Manaqement. Flood
Control and Flood Disaster profirams.
Colorado Water conservat10n oard, 1976. Federal, state,
and local flood-related programs that are applicable in
ColoradO are outlined and explained.

3 Model Floodplain Information Report - Centennial River,
Centennial. Colorado, _
Colorado Water Conser.~tion Bdard; 1975. Outlines format
and level of detb11 LO be included in !ln~pla1n i~!ormation
reports prepar€d by private and governmental agencies i~,: _,,'"
ColoradO ~ater Conservation Board, Examples of text and
plate.5' a.re included. .
-
Index of Floodplain Information in Colorado. P..t..6aQ p~.,." ~Rell.s
Larry F. Lang and Jerald F. Mccain. 1975. Index of Flood-PrOne ~s ..,...t
Area Maps in Colorado prepared by the U. S. GeolOgical Survey
as of January I, 1975, Map of Colorado showing reaches of
streams and tabulations for which detailed and approximate
floodplain information is available as of January I, 1975,
at 1:1,000,000 scale. Approximate flood-prone area
information exists for 15\ of the state as of November, 1980.
/' !>o It... ; 0. f"' ... ... ~
FloOd Information Report, the Big Thompson Rivert Flood of
Jul 31 - Au ust 1 1916 Larimer Count Colorado,
R. V. roz er, J. F. Mc a n, L, F, Lang an D, C. Merriman,
1976. Includes a description of the general meterolog1cal
conditions, flood stages, peak discharges, flood eleva~ions,
photographs of flooded areas, and aerial photographs outlining
inundated areas of the Big Thompson and North Fork Big \
Thompson River flood.

Flooded Area Maps, South Platte River Flood of May 1973,
Arapahoe-Douglas county Line to Weld-Morgan county Line.
Colorado Water Conservation Board, 1974, Aeria photography
mosiacs outlining inundated areas of the South Platte River
in Arapahoe, Denver, Adams and Weld Counties, at 1:12,OOO~
scale.

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7 Model FlOodplain Regulations.
Colorado Water Conservation Board, 1975 and 1981. Developed
in response to the legislative charge of H. B. 1041 and the
National Flood Insurance Program.

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ST ATE OF COLORADO
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DEPARTMENT OF NATURAL RESOURCES

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COLORADO WATER CONSERVATION BOARD

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J. WILLIAM McDONALD, DIRECTOR

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FLOOD PLAIN INFORMA TION

IN COLORADO

INDEX MAP

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