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- - - - - - - - - - - - - - - - - - - TABLE 1 COMPARISON OF AL TERNA TIVES BY ENVIRONMENTAL RESOURCE Geology and Solis No impact to geology. No impact to geology. No impact to geology. No direct impact to soils; however, Overall. approximately 60 acres of soils Overall, approximately 45 acres of soils soil erosion would occur during flood would be disturbed during construction of would be disturbed during construction of events. which 4 acres has been previously disturbed which 3 acres has been previously disturbed by development activities. All disturbed soils by development activities. All disturbed soils are widely distributed in Logan County. are widely distributed in Logan County. Soils in the project area have one or more Soils in the project area have one or more characteristics which reduce their characteristics which reduce their favorableness for the construction of earthen favorabieness for the construction of earthen levees. BMPs would be used to minimize levees. BMPs would be used to minimize soil erosion. soil erosion. Land Use and Existing land use would not be The proposed actions are consistent with The proposed actions are consistent with Planning affected. existing land uses in the project area. existing land uses in the project area. Residential structures in Sterling and Flooding in Sterling for the design flood Flooding in Sterling for the design flood agricultural land in Logan County event would be prevented. event would be prevented. would continue to be flooded. Approximately 55 acres of prime farmland Approximately 33 acres of prime farmland No prime farmland would be affected. would be affected, but only 10 acres would would be affected, but only 5 acres would be be permanently lost from production. permanently iost from production. Traffic and Existing traffic and circulation within Both vehicular and rail traffic would be Both vehicular and rail traffic would be Circulation the project area would not be rerouted/rescheduled during construction rerouted/rescheduled during construction affected. periods. periods. Highway 6 and several county roads Several county roads upgradient of the Highway 6 and several county roads would would continue to be closed and constructed channel would continue to be continue to be closed during major 1I00d damaged during major 1I00d events. closed during major 1I00d events; however, periods; however, the length of closure UPRR embankment would continue the length and duration of closure would be would be reduced. to be washed out during major flood reduced. en " events. " ~ Public Health and Public health and safety concerns Improved publiC health and safety conditions Improved public health and safety conditions ~ 0 Safety that presently exist related to flooding in Sterling. in Sterling. - ... in Sterling would remain.