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<br />During the flood oi' September 1 Md 2, 1938, the rainfall at <br /> <br /> <br />N= totaled 5.00 inches, while during the same days 3.20 inches fell <br /> <br /> <br />at Pierce and 1.23 inches at, Aul-!;. <br /> <br /> <br />These figures are here repeated in order to confirm the im- <br /> <br /> <br />pressions of SOIJle of the local residents that the two major floods in <br /> <br /> <br />the Pierce vicinity during recen-l: years (May 30. 19:55 and September <br /> <br /> <br />2. 1938) have been caused by intonse rai:ofalls OVflr the drainage area <br /> <br /> <br />of Spring Creek above the Town of N= and above the laramie-Poud:re <br />CMal. <br /> <br />8. SPRUG CREEK DRAINAGE BASIN <br />Spring Creek is an :intermittent stream he.vi,ng a drainage area <br />of 71 square miles above the larElIl ie-Poudte Canal, (Of which 12.5 square <br />miles is located in Northeas'c larimer COm:\ty near 'che i\yoming line, <br />and the balMce is in Weld C()unty. An add,itional 10 square miles of <br />drainage area is located Yfesj; of the Unioll Pacifio railroad tracks <br />along a tributary of Spring Greek which arrives at the laramie-Poudre <br />CMal in the vicinity of the Town of N=. The total drainage area <br />above the laramie-Poudre Canal is thus 81 square miles. <br />This water shed tote.ling 81 square miles is appro:x:imately 24 <br />miles long and is, therefore, about 3-1/2 miles in a.verage width. In <br />its upper reaches in larimer County, the draina,ge basin is approxi- <br />lIlately 1-1/2 miles wide. Its maximum width in Weld. County is approxi- <br />mately 6 miles (see Map Exhibit 1). <br />The head waters of Spring Creek are at elElvation approximately <br />6300 feet and the laramie-Poudre CMal is a.t elevai;ic)n approximately <br />5180 feet. On the average the fall along the floor <if 'bhe drainage <br /> <br />..8- <br />