FLOOD10152

• County: Boulder
• County: Adams
• County: Jefferson
• Community: Broomfield, Westminster
• Stream Name: Big Dry Creek Tributaries
• Basin: South Platte
• Title: FHAD - Broomfield Area
• Date: 6/1/1979
• Prepared For: Broomfield, Westminster
• Prepared By: UDFCD
• Floodplain - Doc Type: Floodplain Report/Masterplan

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PREFACE

late floodplains, but to date has chosen to leave floodplain regulation

responsibility with local governments. The report provides a suitable

basis for the adoption of land use controls to guide floodplain manage~

ment, with consideration for environmental attributes, and thereby prevent

intensification of flood losses,

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This report was authorized by the Urban Drainage and Flood Control District

in joint sponsorship with the Colorado Water Conservation Board. The

District has the power to enact District-wide floodplain regulations, At

present, the District makes floodplain information and mapping available

for local agencies to adopt and administer their own floodplain regulations

with the assistance of the District,

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The Colorado Water Conservation Board has the power and duty

... to designate and approve storm or floodway runoff channels
or basins, and to make such designations available to legisla-
tive bodies of cities and incorporated towns; to county planning
commissions; and to boards of adjustment of cities; incorporated
towns, and counties of this state...

as stated in Section 37-60-106 (1) (c) of the Colorado Revised Statutes 1973.

The cities, incorporated towns and counties within the study
area may provide zoning regulations, "to establ ish, regulate,
restrict, and I imit such uses on or along any storm or flood-
water runoff channel or basin, as such storm or floodwater runoff
or basin has been designated and approved by the Colorado Water
Conservation Board, in order to lessen or avoid the hazards to
persons and damage to property resulting from the accumulation
of storm or floodwaters,..

as stated in Section 30-28-111 for the county governments and Section 31-23-

201 for municipal governments of the Colorado Revised Statutes 1973,

Floodwater surface elevations and floodplain boundar ies are often revised

by road and bridge construction, floodplain development, flood control im-

provements or natural processes. Prior to util ization of this report for

planning or design purposes, the user is advised to contact the Urban Drain-

age and Flood Control District or the Colorado Water Conservation Board to

determine if the information in this report has been amended.

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Upon acceptance of this report by the Urban Drainage and Flood Control

District and the designation and approval of this report by the Colorado

Water Conservation Board, the areas described as being inundated by the

100-year flood (Intermediate Regional Flood) can be designated as flood

hazard areas and their use regulated accordingly.

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It should be noted that the terms "Intermediate Regional Flood," "100-Year

Flood," and "1 percent flood" can be used interchangeably as they all define

the same type of flood event.

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The information in this report does not imply any State action to zone or

regulate the USe of floodplains, The District has the authority to regu-

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