ArkNavReport_TOC_Acronyms_ExecSummary.doc

Property damage oklahoma 1800 7500 arkansas 171200

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Non-Ag. Property Damage Oklahoma -1,800 -7,500 0 Arkansas -171,200 -385,900 -17,100 Recreation Facilities OK -76,500 -29,300 -5,500 Recreation Facilities AR -13,800 -30,000 4,000 Ag. Property Damages Oklahoma -119,500 -245,500 0 Arkansas -144,800 -299,600 -18,800 Total Annual Benefits $8,596,200 $8,444,100 $8,800,700 Net Benefits Compared to No Action $7,877,200 $7,488,119 $8,800,700 1 Real Estate costs from Economic Appendix Table 4-1. 2 Incremental Costs - costs in addition to those existing with current flow management. 3 Incremental Benefits - benefits in addition to those existing with current flow management... Source: USACE, Tulsa and Little Rock Districts, Hydropower Analysis Center, Parsons. Component 4, the Operations Only component, was the most favorable component among the flow management features. This component achieved the purpose with a positive benefit to cost ratio and minimal adverse environmental impacts. Implementation of this component is within the authority of the USACE Southwestern Division Commander. Additional meetings to acquire input from the public will be required prior to implementation but no additional analysis beyond this report will be necessary. There are almost no costs associated with the implementation of this component. This is the only component of the flow management feature that was carried forward as part of the alternatives analyses and is a component of all dredging related alternatives. xvii
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While the component 4, Operations Only component, provides the greatest annual net benefits of the components analyzed, it should be noted that a part of the costs of this component is $18,800 of negative annual benefits to agricultural property in Arkansas. This component does not solve the problem of flooding in the unprotected areas outside the existing flood control levees at Fort Smith, Arkansas which was the purpose for conducting the original reconnaissance study. All examined components that solved the flooding problem were either cost prohibitive and/or created unacceptable impacts to other project purposes. It was determined that the areas being flooded in the Fort Smith Area should be examined under the Arkansas River Additional Land Acquisition Project for possible purchase of additional flowage easements or of the lands themselves. However, the Arkansas River Additional Land Acquisition Project was not funded in FY 05 and future funding appears doubtful. In the absence of funding, the possibility exists for some claims, although actual harm will be relatively small. Navigation Channel Deepening Feature: Navigation channel depth limits the potential efficiency and volume of commercial navigation operations on the MKARNS. The proposed Navigation Channel Deepening Action is to deepen the navigation channel to allow deeper draft tows to operate on the system. Other authorized project purposes, including flood control, recreation, hydropower, water supply, and fish and wildlife would be maintained.
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