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<br />CHAPTER 1
<br />HISTORIC FLOOD DAMAGES
<br />AND CAUSES OF FLOODS
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<br />Historic Fllood Damages
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<br />The earliest recorded floods in Colorado are reported to have
<br />occurred in 182t3 in the Arkansas River and Republican River basins,-
<br />Between 20 and 30 floods of large magnitude (in terms of peak dis.
<br />charge) occur somewhere in the state every year. On the average,
<br />every 6 years a major flood killing 22 persons and leaving
<br />S114,300.000 in damages (present worth) has occurred. The average
<br />annual flood loss in Colorado is almost 4 people per year and
<br />$14.000,000 in property damages based on the trend from 1896 to
<br />'1976, The President has declared areas in Colorado a major disaster
<br />during six of the past 20 years. Most of these disasters were caused
<br />by precipitation, but two were caused by dam failure.
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<br /> Damages
<br /> Major Stream Lass or (Adjusted to
<br />Oa1e and Location Lif. Damages 1982 Worth)
<br />~"Iy 1896 Bear Creek a! 27 $ $ 9June \965 Arkansas River 16 46 700,000 107AOe 000
<br /> Morroson BaSin
<br />:'OCI 1911 San Juan River 2 100.000 600,000 10May 1969 South Platte 0 5.000.000
<br /> Ileal Pagosa Spr RIVer BaSin
<br />3Ju1y 1912 Cherry Creek at 2 1.000.000 6.300.000 11Sept 1970 Southwest 0 4.000,000
<br /> Denver Colorado
<br />',June 1921 Arkansas RIVer at 78 19,000.000 108.300.000 12May 1973 South Platte River '0 121 500,000 206,600 (1']0
<br /> Pueblo at Denver
<br />'May 1935 Monument Creek. '8 1.760,000 8.100,000 13July 1976 Big TtlOmpsan n9 35,500000 53.30e 000
<br />5May al Cola Spflngs 14July River In Canyon
<br />1935 Kiowa Creek near 9 1982 Fall River at 3 30,680,000 3'.OOC C'OO
<br /> Kiowa Estes Park
<br />M<Jy '955 Purgato,re River 2 4.000.000 12.400.000
<br /> at Trinidad "otal F'lood loss 3" $i69,240,000 S' 684000 C'OC
<br />ilJune '965 South Platte 8 500.000,OQO 1.150.000.000
<br /> River at Denver
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