Laserfiche WebLink
<br />of Engineers, in cooperation with the Weather Bureau, has made <br /> <br />comprehensive studies and investigations based on the vast records <br /> <br />of experienced storms and floods and has evolved generalized pro- <br /> <br /> <br />cedures for estimating the flood potential of streams. These <br /> <br /> <br />procedures were used in determining the Standard Project Flood, <br /> <br /> <br />which is defined as the flood that can be expected from the most <br /> <br /> <br />severe combination of meteorological and hydrological conditions <br /> <br /> <br />that is considered reasonably characteristic of the geographical <br /> <br /> <br />area in which the drainage basin is located, excluding extremely <br /> <br /> <br />rare combinations. <br /> <br />Standard Project Flood rainfall 'estimates were made <br /> <br /> <br />for Fountain Creek at the 8th Street Bridge gaging etation. <br /> <br /> <br />Averaged over the drainage area, the estimated rainfalls were cal- <br /> <br /> <br />culated as 5.22 inches in 3 hours, 6.19 inches in 6 hours, and 7.29 <br /> <br /> <br />inches in 24 hours. Peak discharges of the Standard Project Flood <br /> <br /> <br />vary from 225,000 cubic feet per second near the mouth to 165,000 <br /> <br /> <br />cubic feet per eecond at the county line. Standard Project Flood <br /> <br /> <br />discharges at specified river mile 10cat10ns are shown in Table 7. <br /> <br />TABLE 7 <br /> <br />STANDARD PROJECT' FLOOD <br /> <br />PEAK DISCHARGES ON <br /> <br />FDUNTAIN CREEK <br /> <br />In lower reach <br /> <br />Mile <br />Above Drainage <br />Mouth Area Discharoe <br /> sq. miles c.f.s. <br />9.Bl 894 199,000 <br />1.69 925 225,000 <br /> <br />Location <br /> <br />In upper reach <br /> <br />35 <br />