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<br />channel area for the 100-year flood event would be 3 to 4 feet <br />per second" Average flow vl=loci ties in the flood plain west, of <br />the main channel, including.the downtown area, would average <br />be1:ween 1 to 3 feet per second. The flood pI ain east of the main <br />channel would have average velocities rimging' be.tween 1 and 4 <br />feE,t per second. Flood flow depths would be shallow throu'ghout <br />the reach, ranging from approximately 0,,5 to 1 foot along the <br />east edge of town to a ma:Kimum depth of 4 to 4.5 feet on Clclyton <br />Street. <br />Between County Road DLD and the Burlingt,on Northern Railroad, <br />the average flow velocity for the 100-year flood event in the main <br />channel would be approximately 2 to 3 fee1: per second. The fringe <br />areas of the flood plain would experience aVE,rage velocities of <br />1 to 2 feet per second west of the main stream and approximately <br />0.7 to 1.2 feet per second east of t,he main stream. Flow depths <br />in the wide flood plain area west of the creek would average be- <br />tween 1.5 to 2 feet. <br />From County Road DLD to the upstream study limits, the main <br />channel velocities are muc h higher, ranging from 6 to 10 feet per <br />second. Through the same reach, the overbank or fringe area velo- <br />ci1:ies average between 2.5 to 5 feet, per second west of the Beaver <br />Creek main channel and 2 to 4 feet per second east of Beaver Creek <br />channel. The average flow depths on the agricultural areas within <br />the flood plain on the west average between 0.5 and 2 feet. <br />Special note should be made of the potential hazardous flood <br />velocities and depths in the downtown and residential area of t.he <br />Ci 1:y. Average velocities for the HID-year flood event were esti- <br />ma1:ed to range between 1 to 3 feet per secone',; however, localized <br />velocities on streets and around obstructionE: may be 2 or 3 times <br />the average velocity. Velocities in excess of 2 to 4 feet per <br />second and depths in excess of 2 to 3 feet can be considered as <br />hazardous to human safety and welfare. <br /> <br />Other Flooding Sources <br /> <br />Other sources of possible flooding' in Brush include the Brush <br />Lateral Canal and Badger Creek overflows. Both of these flood <br /> <br />-11- <br />