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<br />tho 8ig Thompson R)vo~ studiod In this r~port begins at the Lar)mer- <br />Weld County line between Section 24, T5N, R68W, and Section 19, <br />T5N, R67W and ends at the conflu~nce of the Big Thompson River with <br />the South Platte River. The downst~eam i imi t of the BIg Thompson <br />River studi<ld in flood Plain InforMation, Big Thompson River, Love- <br />land to the Larlme~-Weld County L)ne, Colorado, LIttle Thompson <br />River, Boulde~ and Larimer Counties near Berthoud, Colorado, pub- <br />Ilshed by the Corps of Engineers in June 1977, Is the upstream <br />stUdy limit of this ~apo~t. Throughout the ~tudY reach, the chan- <br />nel width varies f~om 80 to 150 feet and averages 100 feet In width. <br />The channel depth rang~s from 4 to 8 feet and ave~ages 6 feet. The <br />streambed has an average slope of 8 feet pe~ mile through the study <br />reach. The ch!'lnnel is alluvIa I and meanders th~ough a "U"-shapad <br />valley. <br /> <br /> <br />Figures I through 8 show existing condItIons along the <br />Big Thompson Rive~ study reach. Thase phOTographs were taken In <br />September 1977 by personnel of The Colorado WaTer ConservaTion <br />Board. <br /> <br />Figure I. <br /> <br />Sig Thompson River. <br />La~)mer-Wald County <br /> <br />Looking downstream f~om the <br />line (~eforcncc point 49). <br /> <br />DEVELOPMENT ON THE fLOOD PLAIN <br />DevelopmenT On the flood plain wIthin The STudy area Is <br />relatively sparse. The most common form of development 15 that <br />associated with farmsteads and an agricultural ar&a. At present, <br />the more congested developmenT associated wiTh u~ban a~eas ~omalns <br />external to the fjood plain. <br /> <br /> <br />- <br /> <br />, <br /> <br />FIgure']. Big ThompsolIRiver. Looki'''Jupstre"",frOll1W"ld <br />County Road 17 (~eference point 74). <br />. <br />