FLOOD02072

• County: Logan
• Community: Logan County
• Stream Name: Pawnee Creek
• Title: Floodplain Management Study
• Date: 4/1/1992
• Prepared For: Logan County
• Prepared By: USDA Soil Conservation Service
• Floodplain - Doc Type: Floodplain Report/Masterplan

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INTROOt1CTION

This tlood plain management report was prepared by the U.S.
Department of Agriculture, soil Conservation Service in
cooperation with the Colorado Water Conservation, Lo~an County,
and,the Town of Sterling, Colorado. Interpretations of the flood
fla~n management S~Ud~ and recommendations to reduce damages are
Included; however It IS beyond the scope of this report to
provide detailed proposals or plans to rectify the flooding
problems.

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Section 30-28-111 C.R.S. for county governments and Section 1-23-
301 C.R.S. for municipal governments of the Colorado Revised
Statutes, states that cities, incorporated towns, and counties
within the study area may provide zoning regulations ".. .to
establish, regulate, restrict, and limit such uses on or along
any storm or floodwater runoff channel or basin that 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
flood.....aters. .."

Obiectives

Therefore, upon official approval of this report by the Colorado
Water Conservation Board, the areas described as being inundated
by the lOO-year flood can be designated as flood hazard areas and
their use regulated accordingly by the local governments.
Flood plain management studies are carried out by the Soil
Conservation Service as an outgrowth of the recommendations in ~
Re~ort by the Task Force on Federal Flood Control Policv, House
Document No. 465 (89th Congress, August 10, 1966), especially
Recommendation 9(c), Requlation of Land Use, which recommended
the preparation of preliminary reports for guidance in those
areas where assistance is needed before a full flood plain
information report can be prepared or where a full report is not
sCheduled.

The objective of this study is to provide d~tailed flood plain
management information and mapping to Logan County and the town
of Sterling for use in implementing flood plain management
programs which will minimize potential flood losses. InCluded in
the report are engineering and hydrologic data which will
facili~ate the.d~velopment of a flood plain management plan, road
and br~dge des~gns, and flood control measures (if needed).
Authoritv
Section 37-60-106(1) (c), Colorado Revised Statutes, authorizes
the ColoradO Water Conservation Board "to designate and approve
sto~m or. floodwater runoff channels or basins, and to ~uke such
des~gnat~ons available to legislative bodies of cities and
incor~orated towns, ~o county planning commissions, and to boards
of adJustment of cit~es. incorporated towns, and counties of this
state". The board provides assistance to local govern:-,cnts in
dev~lopment and adoption of e~fective flood plain ordi~~nces. In
addltion, the board w111 prOVide technical assistance to loca'
entities during the performance of flood plain information -
studies within Colorado. Presently, direct financial assistance
for the performance of flood plain studies is no longer available
from the board.

Authority for funding flood plain management studies is provided
by Section 6 of Public Law 83-566, which authorizes the U.S.
Department of Agriculture to cooperate with other federal, state
and local agencies to make investigations and surveys of the
watersheds and rivers and other waterways as a basis for the
development of coordinated progra~s. In carrying out flood plain
management studies, the Soil Conservation Service is being
responsive to Executive Order 11988, entitled "Flood 'Plain
Management", and Executive Order 11990, entitled "Protection of
Wetlands" (both effective May 24, 1977).