Laserfiche WebLink
<br />Plate 6 nhows the flooded areas for the July 3D, 1989 flood <br /> <br /> <br />event in the vicinity of Paoli, Colorado. A number of flood <br /> <br /> <br />paramnlorn wore demonstrated by the July 30,. 1989 flood <br /> <br /> <br />event. These flood parameters are: <br /> <br />. <br /> <br />Main Channel Floodinq. - At County Road 19, the flooded <br />areas were contained in the natural floodplain. <br /> <br />. <br /> <br />Split Flow for Floode~ Areas - The U.S. Highway 6 and <br /> <br /> <br />Burlington Northern embankments acted as ~ diversion <br /> <br /> <br />dike within the North Fork Frenchman Creek floodplain. <br /> <br /> <br />During the July 19f19 flood tl:1.e diversi.on of floodwaters <br /> <br /> <br />from the natural drainage (see Table 2) was <br /> <br /> <br />substantial. At the U.S. Highway 6 bridge, it has been <br /> <br /> <br />estimated that seventy percent of the floodwaters were <br /> <br /> <br />diverted to the east through the Town of Paoli. These <br /> <br /> <br />floodwaters were diveJ:ted to South Fork I"renchman ceroel\: <br /> <br /> <br />basin downstream of Paoli. The path of the diverted <br /> <br /> <br />fJoodwalors is shown on Plate 6. <br /> <br />o <br /> <br />Bridqe Conveyance - Ttle capacities of the U.S Highway 6 <br /> <br /> <br />and Burlington Northern Railroad bridge are limited <br /> <br /> <br />These limitations are contributed to by a lack of <br /> <br /> <br />channel capacity upstream of the bridges; reduced <br /> <br /> <br />bridge openings; and non-existent nalural overbank <br /> <br /> <br />floodplain areas. <br /> <br />-9- <br />