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<br />
<br />!"LOCO HISTORY
<br />
<br />S1nce 1844 nlnete~n floods h~ve occ~rred on the So~th P1~tt~ Riyer
<br />
<br />2000
<br />
<br />in the Den"er reecho A hb~l8.t1o:! of flood d~tes and the pes~ disch~rges
<br />
<br />..
<br />
<br />" ", Denver reech is given below.
<br /> Pt!~k :lisch~rge ?e~k D1sch~r"e
<br />D~te c.f.s. D~te c.r.s.
<br />M"y 1957 24,000" ,Tl.lly 1912 12,000"
<br />,~. 1949 6,850 ,~, 1894 14,000"
<br />M~y 1948 15,000* ,,' 1885 20,000"
<br />.::ru.ne 1947 5,670 '^y 1876 Not recorded
<br /> ., estimated
<br />AcJg'Jst1945 5,720 MAY 1867 '" recorded
<br /> " estim~ted
<br />Aprll.~ay 1942 10,700 June 1864 ,., recorded
<br /> " estim"ted
<br />May 1935 12,300 M"y186" ,~ot recorded
<br /> " esti",.,ted
<br />Sept~:r.ber 1933 22,000 ~~qy 1864 :fot recoroed
<br /> " est1"_."ted
<br />A.1gust 1933 15,000- l8:,i, 100,000"
<br />""ne 1921 3,7<;;0
<br />"~s~l;"c,t~d
<br />
<br />!
<br />i
<br />
<br />POPULATION
<br />
<br />URBAN LANDS
<br />
<br />1980
<br />
<br />1960
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<br />.
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<br />
<br />2000
<br />
<br />U. S. ARMY
<br />
<br />URBAN STORM RUNOFF
<br />
<br />
<br />1980
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<br />
<br />TRENDS - URBAN GROWTH AND STORM RUNOFF
<br />METROPOLITAN DENVER
<br />
<br />Trends in p<lp~lation and urban land ,e<1uiremants in the Denver metropolitan Me~,
<br />and the corresponding volume 01 storm r~nolt Irom ~rbaniled lands to be expected
<br />I'om a storm with rainfall Of one inch in one hour over the urban area. This ,unoff
<br />added to the swollen streams from runoff 01 the wate,shed above the metropolitan
<br />a'ea may in future years aggravate or create flood problems in the Oenver region.
<br />
<br />SOUTH PLATTE RIVER BASIN, COLOlADO
<br />DENVER METROPOLITAN REGION
<br />
<br />flOOD PLAIN INfORMATION STUDY
<br />
<br />SOUTH ,PLATTE RIVER
<br />
<br />GROWTH TRENDS
<br />
<br />U. S. ARMY ENGINEER OISTRICT, OMAHA
<br />CORPS OF ENGINEERS OMAHA. NURASKA
<br />OCTOBER 1963
<br />
<br />~RBA~ G~O~~" AlJ STO~~ RU~O,f
<br />
<br />,
<br />,
<br />
<br />Figure I. illt.lstr~tes how trends ln popul~t10n grO"Wth for metropoHt~n
<br />
<br />Denver "ill inr,.a!lse urbr,n l~nd re<l_uire".,enta, ~nd ho" n.e volume of storm
<br />
<br />,
<br />
<br />runoff fro", the urb',nl.?ed ",reA is ex~e~ted to lncre"e. ,"'lth 1ncre~sed
<br />
<br />I
<br />,
<br />i
<br />I
<br />!
<br />I
<br />
<br />runoff fro," urboo gro'.th, floocls '"~l' Oce"r in the futu.re from r"inf~ll
<br />
<br />qll-,ntltles ,'hier, WIder nJ.r~l "',~tersiled concUtions d1d !lot produce flood
<br />
<br />sta~es in th~ rlver. ~ese trends deT.onstrate thp.t p.deql.l~te 1110",nce~
<br />
<br />"'"st be m~d<" to l're,.""t flood plein "ncro:;lch"..ents iota ""~"s of po~ent1.'l
<br />
<br />~ut"re :'loo0.1u".
<br />
<br />"
<br />
<br />2000
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<br />FIGURE .(
<br />
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