FLOOD10208

• County: Montrose
• Community: Montrose
• Stream Name: Uncompahgre River
• Basin: Gunnison
• Title: Flood Control and Drainage Plan
• Date: 5/1/1980
• Prepared For: Montrose County
• Prepared By: Gingery Associates, Inc.
• Floodplain - Doc Type: Floodplain Report/Masterplan

vfciti",,; ;ncurporoteatownS;ondcount1eSoftMisstate..."

G. To provide technically accur~t~ onrl m~~a'Jeab]" flnodplafn infor.
mation based on detailedfr.ilppin9 for early conversion to there_

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

gular flood insurance program.

The cities, incorporated towns, and counties within the study area
mdyprovidezoningregulations.

h'. TOforr1Ulateandevaluatealternativ"floOdcontrolanddrainage

"

toestablish,regulate, restrict, and limit such uses on or

concep ts and determi ne t he 1~{l5 t eco nnwi call y f ea , i b 1 e and
practical plan.

along any storm or floodwater runoff channel or basin, as such

stor~ or floodwater runoff channel or basin has been designated
and approved by the Colorado Water Conservation Board. in order to
lessen or avoid the halards to persons and damage to property re-
sulting from the accurnulation of storrr: ar floodwaters. .."

ScoPe of I%rk
The scope of work for this study includes the following study tasks:
A. Reconnalssance and field survey to deterrnine flow paths and di-
rections of overland flow escaping from stream channels under
existing conditions.
B. Hydrologic investigation to determine the effect of local urban
runoff on the proposed flood control alternative,.

as stated in Section 30-28-111 for county governments and Section 31.23-301
for municipal governments of the Colorado Revised Statutes 1973.

~ectives

c. Floodplain determlnat10n from 10-year, 50-year and lOO-yeare vents
under existing conditions.
O. Assessment of damages for the lO-year. 50-ye~r and IOO-year floods

The specific objectives of the flOOd control and drainage plan pre-
sented in this study are listed below:
A. Toreducethethreattohumanlife,rersonal injury,orrelated
health hazards due to floods.

and calculations of average Jnnual darr.ages.

B. To reduce or prevent floOd darnage andrnaintenance requirements
to public and private property and facilities.
C. To reduce traffic hazards and public inconvenience frornflood
WdterS and enhance emergency vehicle movement during floods.
O. To preserve the ecological and environmental values of natural
floodplain areas and enhance recreational opportunities.

E. Conceptual deSign of flood control alternatives that would allev iate
the flood da~~ges in Montrose.
F. Preliminary design of the selected alternative.
G. Economic analysis to determine the benefit/cost ratio for the
selected plan.

E. To impftlve too quality of water resource, by reducing sediment.

Mappinq and Surveying
Topographic mapping, aerial photography and digitized cross-sections
for this study were prOvided ~y the City of ~ontrose and the ColoradQ Water
Conservati on Board in cooperat i on with t.~e IJ. S. Bureau of Recl ama I. ion. The

salt,andather'materialscarried by storm and floodwdters.
F. To~kecffertive use of public fundS and enhance the value of
land dnd other property in the cocrnunity.

"'ap~ we~e prepared by Aerial Photo Service, lnc., of Tul Sd, Oklahoma. in

December 1977, frOlnaerial pMtographs taken in June 1977.

- ~ .

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