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Last modified
1/29/2010 10:12:00 AM
Creation date
10/5/2006 2:44:44 AM
Metadata
Fields
Template:
Floodplain Documents
County
Larimer
Weld
Community
Cache La Poudre River Basin
Basin
South Platte
Title
Vol I Flood Hazard, Dam Safety and Flood Warning-Cache La Poudre River Basin
Date
10/1/1981
Prepared By
US Army Corps of Engineers
Floodplain - Doc Type
Flood Mitigation/Flood Warning/Watershed Restoration
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<br />. <br /> <br />In its issue of 17 June 1923, the Fort Collins Express published a <br />dispatch from Greeley which read: <br /> <br />"High water on the (Cache la) Poudre second only to the flood of <br /> <br />1904, tonight shut off all travel on highways north and west of the <br /> <br /> <br />city and had driven a score of families from their homes on the <br /> <br /> <br />lowlands. The south channel of the (Cache la) Poudre is within a few <br /> <br /> <br />inches of the Union Pacific track between here and Cheyenne. Three <br /> <br /> <br />feet of water has driven tourists from their camp ground in the <br /> <br /> <br />bottoms, The Boyd farm northwest of here was entirely under water fDr <br /> <br /> <br />the first time since 1884." <br /> <br />Flood of May - June 1930. Heavy rains in the North Fork Cache la <br /> <br /> <br />Poudre River Basin on 31 May 1930 caused the highest floDd on the North <br /> <br /> <br />Fork since 1904 and a flood on the Cache la Poudre River at the canyon <br /> <br /> <br />gaging station that ranked among the most severe floods in that area. <br /> <br />The storm that caused the flood appeared to originate in the <br /> <br /> <br />foothills southwest of LivermDre, where the altitude ranges from 7000 <br /> <br /> <br />to 7500 feet m.s.l, It traveled northwest, releasing heavy precipi- <br /> <br /> <br />tation about 7 miles northwest of Livermore, and ended in a hailstDrm <br /> <br /> <br />that covered the ground with hail to a depth of several inches. At <br /> <br /> <br />Livermore the rain started at 3 p.ro. and continued until 6 p.m., with <br /> <br /> <br />the heaviest fall about 5 p.m. No record Df the amount of precipi- <br /> <br /> <br />tation is available. The North Fork Cache la Poudre River started to <br /> <br /> <br />rise about 5 p.m. and reached its peak an hour later on the Livermore <br /> <br /> <br />gage. The river remained high until 8 p.m" then dropped rapidly. The <br /> <br /> <br />peak discharge was 6,800 c.f.s., as determined by a slope-area measure- <br /> <br /> <br />ment. A small area at Livermore waS inundated. <br /> <br />Between Livermore and the canyon gaging station on the Cache la <br /> <br /> <br />Poudre River about 14 miles downstream, the flood traversed a narrow <br /> <br />. <br /> <br />21 <br />
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