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<br />Below lligh"ay 89 the levee height provides three feet of freeboard. <br />The levee height is adequate to contain the flood of record witldn <br />the freeboard. <br /> <br />Foundation excavation for levee construction'woulo be minor <br />throughout much of the levee reach and would consist of stripping <br />to remove annual-type vegetation and scattered brush. TIle levee <br />alignment east of Colorado Highway 89 crosses an inactive garhage <br />dump area. Foundation e/<cavation will be requireo in this area to <br />remove and dispose of buried garbage and debris. <br /> <br />As shown on Plate 5, bank protection will he provided along the <br />Arkansas Rivpr from station 140+00 to station 160+00 to account for <br />the commingling of Two Butte Creek and the Arkansas River at this <br />point. Bank protection will also be provided at esch bridr.e along <br />wild lIorse Crcek. <br /> <br />At the points where the levee is interaectC'd by Colorado Highway <br />89 and a county road, road ramps will be cons tructed over the levep. <br />Concrete abutments will be buil t at the AT&SF Rail road tracks an.! U. s. <br />Highway 50 and stop-logs placed between them to protect sgainst flows <br />having an exceedence interval greater than 25 years. <br /> <br />As shown on Plate 5, two ponding areas wi 11 be formed as a resul t <br />of required levee borrow. These areas will be utilized to pond in- <br />terior drainage runoff. The selected design frequencies for interior <br />drainage were based on criteria presented in EH 1110-2-1410. Both <br />areas are relatively low valued agricultural sections. Damages from <br />ponding are expected to be comparatively low under anticipated future <br />conditions ano limited mainly to a temporary inconvenience and nuisance, <br />Borrow Area No. 1 has the capacity to store a SPF interior storm volume; <br />and even though a 10-year volume is considered adequate, Borrow Area <br />No.2 has the capllcity to store in excess of SPF interior storm volume. <br />Both areas are drained with a 3D-inch gravity outlet structure throu~h <br />the levee. The remaininr, arC'ss behind the levee will drllin toward t',e <br />east, bellind the levee and out to the Arkansas River. <br /> <br />. : ~ . <br /> <br />Beautification measures will receive careful consideration tllro\lgh- <br />out the plllnnin~ and construction phases of the project. Care will he <br />taken to construct the levee in II manner wldch is aesthetically accept- <br />able, and emhanJ;ment slopes and horrow areas will be ae"ded with \1111 ivp <br />grasses for appearance amI erosion protection. In general. llny vinij'ly <br />disturhed arpas will be restored to natural conditions. DurinG con- <br />struction stripped top soil will be stockpiled for later placement on <br />levee slopes to provide a better vegetative growing media. <br /> <br />RELOCATIOI:S <br /> <br />Federal. There are no Federal relocations required in connection <br />with the project constructions. <br /> <br />19 <br />