FLOOD07967

• Designation Number: 181
• County: Larimer
• Community: Loveland
• Stream Name: Big Thompson River
• Basin: South Platte
• Title: Floodplain Information Report - Big Thompson River, Loveland
• Date: 10/1/1981
• Designation Date: 12/1/1981
• Floodplain - Doc Type: Floodplain Report/Masterplan

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PREFACE

This flood-plain information report presents the results of a study on
the Big Thompson Rivet flood plain in the vicinity of Loveland, Colorado.
It was prepared by Resource Consultants, Inco, of Fort Collins, Colorado,
at the request of the City of Loveland and Larimer County 1n cooperation
with the ColoradO Water Conservation Board. This report is an attempt to
revise snd update previous studies of this teach of the Big Thompson River
completed In 1971 by the Corps of Engineers (Ref. 1) and In 1978 by the
Flood Insurance Administration (Ref. 7). It provides necessary documenta-
tion tor the City of Loveland to enter the ~ational Flood Insurance Program.

Copies of this report are available for public distribution, for a
nominal fee, at the below listed offices. A Technical Addendum to this
report is also available for review ae ehe same offices; however, it has
not been published in sufficiene quantieies for public distribution. The
Technical Addendum includes all pertinent data and calculations used in the
flood-plain analysis.

Public Works Department
City of Lovel~nd
410 East 5th Street
Loveland, CO 80537

Planning Department
Larimer County
P. O. Box 1190
Fort Collina, CO 80522

Colorado Water Conservation Board
823 State Centenn1a1 Building
1313 Sherman Stteet
Denver, CO 80203

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RE:\OURCE: CON\UlT~NT\ INC

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INTRODUCTlO~

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Authorization

This teport was authotized by the ColoradO Water Conservation Board in
joint sponsorship with Loveland, Colorado, and Larimer County.

The Board's power and duty is . . .
.to devise and formulate methods, meana and plana for
bringing about the greater utilization of the ",aters
of the state and prevention of flood damages there-
from and to designate and approve storm or floodway
runoff channels or basins, snd to make such deaigna-
tion~ available to legislative bodies of cities and
incorporated towns; to county planning commissions;
and to boards of adjust~ent of cities; incorporated
towns; and counties of this atate. . .

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

The cities, incorporated towns, and counties ~ithin the study area may
provide zoning regulations . . .

.to establish, regulate, reatrict, and limit such uses
on or along any storm or flood~ater runoff channel or
basin, as such storm or flood~ater runoff channel nr
basin lk~s been designated and approved by the Colorado
Water Conservation Board, in order to lessen or avoid
the hazards to persona and damage to property resulting
from the accumulation of storm or floodwaters. . . .

as stated in Section 30-28-111 for county governments and Section 31-23-201
for ~unicipal governments of the Colorado Revised Statutes 1973.

Therefore, upon official approval of this report by the Colorado Water
Conservation Board, the areas described as being inundated by the lOa-year
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flood (Intermediate Regional Flood)- cao be designated as flood hazard
areas and. their use regulated accordingly by the local agencies.

lIThe terms "Intermediate Regional Flood," "IOO-year flood," and "one
percent flood" can be used interchangeably as they all define th e
sa"leflood"-vent (see Glossary). C1o""ver,toavoidconfusion,
th"-term"IOo-yearflood"Io'illbe\lsedexcl\lsivelythroughouttnig
report."

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RE:\OURCE: CON\UlT~NT\ INC