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<br />
<br />discharges and stages for the Arkansas River at Canon City
<br />during the period of record are presented in Table 2.
<br />
<br />TABLE 2 - HISTORICAL FLOOD PEAK DISCHARGES AND STAGES
<br />
<br />Arkansas River at Canon City
<br />Drainage Area - 3117 square miles
<br />Datum - 5343.62 feet NGVD
<br />
<br />,-,-:-,.,.:-,-,.:.:.,..............:..:.
<br />"::,,:,;:.,::,:,::,:::,::,:;:::;:::::::,:
<br />',::",:;:;')::,':::::',:.:::::::::::::
<br />i~___
<br />.:.-;.;.,..,'..:....-;.,-..
<br />'::-'-:-:,'-'-:;'-":-:-::':-:':-:-.
<br />i~~9?
<br />E1921
<br />-f~~~
<br />'" ,.',.1.).,.I....4~.....
<br />.. ........,,<".;..
<br />J49'.~',~.
<br />::}}:i~t:9i.:!i ... .....~:~ jnt:~:)::::::":
<br />'.....11957 .'...........J.;;;".'
<br />,..,."";".,',I.-,,,..,l_.....,.,.,,~,',....,..,.,6_..,...~ ",,:;:
<br />, ....... .:::::;::::~:m::n:r:::::H:n:n
<br />:':-,:-:::",:<:;.'::,:,;::,:::;'::,:x'._...............:N:~
<br />
<br />.-.-.....'.-,....'.-.-.-.-.....
<br />...........".....-,."
<br />-.-..........-......,'
<br />.-.-......--........
<br />....-.-......-.......-............,......
<br />..........".....-....
<br />...-.-.-.-.....-....-.--..-..:,;..::..
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<br />... --..--;....-.-;...;-;',-,-;...:-;......'..-.".;.;.;.,.;.".;.,-,-.....-,. .-...-...-..'_..,.....
<br />
<br />....-:.;.;...,-;....
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<br />
<br />Figure 1 shows the gage at Canon City.
<br />
<br />Floods in Florence have occurred on Chandler, Oak, and
<br />Coal Creeks in 1909, 1921, 1923, 1949, 1957, 1965, and 1992.
<br />There are not any gages on these creeks to record the
<br />magnitude of these floods, but the volumes were sufficient to
<br />cause costly damage in the City of Florence (reference 3).
<br />
<br />For the 1921 flood on Chandler, Oak, and Coal Creeks,
<br />the u.S. Geological Survey has estimated the peak discharges
<br />to be 1610, 2760, and 3720 'cfa (reference 3). Weiland
<br />Engineering Company estimated the 1923 flood for Oak Creek to
<br />be 11,250 cfs (reference 4).
<br />
<br />Based on the numbers presented above, it is reasonable
<br />to assume that large floods will occur in the future on the
<br />Arkansas River in the Florence, Colorado area.
<br />
<br />Flood photographs are presented in Figure 2.
<br />
<br />3
<br />
<br />~ Many floods have
<br />occurred in the
<br />past. Similar or
<br />greater floods are
<br />expected to occur in
<br />the future.
<br />
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