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<br />J <br /> <br />a temporary sandbag dike along the railroad tracks prevented flood- <br /> <br /> <br />waters from directly entering the main business district, backing- <br /> <br /> <br />up of water through storm sewers prompted the sandbagging of vulner- <br /> <br /> <br />able store fronts. <br /> <br /> <br />g. Dodge City, Kansas.- Large Arkansas River floods in- <br /> <br /> <br />flicted damages in the Dodge City area in 1921, 1942, 1949, 1951, and <br /> <br /> <br />1965. The present channel is restrictive and relatively narrow, pro- <br /> <br /> <br />viding limited flood capacity. Although channel improvements by <br /> <br /> <br />local interests--low earthfill levees and underbrush clearing--have <br /> <br /> <br />reduced damages from small floods, the larger and more destructive <br /> <br /> <br />floods breach the local levees and rapidly cover the flood plains. <br /> <br /> <br />Flooding is more severe because the flood prone lands average only <br /> <br /> <br />6 to 10 feet above the channel bottom; also, the flood plains are <br /> <br /> <br />occupied by homes, churches, parks, and an industrial complex. Large, <br /> <br />destructive floods pose a significant threat to community life and <br /> <br /> <br />property within the portion of Dodge City that lies south of the <br /> <br /> <br />AT&SF railroad, tracks. <br /> <br /> <br />h. Wilroads Gardens, Kansas.- A suburban community near <br /> <br /> <br />Dodge City, Wilroads Gardens experienced severe flooding in 1949, <br /> <br /> <br />1951, and 1965. Problems at this community are basically the same <br /> <br /> <br />as those described for Dodge City. An earthfill levee along the south- <br /> <br /> <br />bank portion of the Arkansas provides protection for low magnitude <br /> <br /> <br />floods, but is ineffective against larger flows. During a severe <br /> <br /> <br />flood stage, this levee is subjected to abnormal pressures in direct- <br /> <br /> <br />ing overbank flows (at a channel bend) into a confined floodway. <br /> <br /> <br />Considerable valley storage is accumulated upstream from this levee, <br /> <br /> <br />which adds momentum to the destructive floodwater forces unleashed <br /> <br /> <br />during a levee failure. <br /> <br /> <br />i. Kinsley, Kansas.- Portions of Kinsley are subjected <br /> <br /> <br />to flooding from Little Coon Creek, Big Coon Creek, and the Arkansas <br /> <br /> <br />River. Flooding north of the AT&SF railroad is primarily from Little <br /> <br /> <br />Coon Creek, prior to its confluence with Big Coon Creek east of the <br /> <br /> <br />city. Historically, floodwaters from Little Coon Creek have effected <br /> <br />~ <br /> <br />A-ll <br />