plan also proposes the later authorization of lock extensions at five additional locations, subject to a favorable feasibility report (see discussion of adaptive implementation).

  • Navigation study and monitoring. Authorization is recommended for a continuing program of studies and monitoring, to include the further development of inland navigation economic models, increased collection of data on global grain markets, and so forth. The costs of these studies would be borne equally between the Inland Waterways Trust Fund and general funds.

  • Adaptive implementation of navigation improvements. The Corps proposes to continue monitoring and analyzing river traffic and markets and to incorporate improved economic models whenever they become available. At the completion of design for each new lock expansion project, a notification report will be prepared that provides the latest data on traffic and markets. If new economic models are developed and accepted, an evaluation report will be prepared that concludes with recommendations to Congress on whether lock construction should proceed or be delayed. Finally, an updated feasibility report will be completed before authorization is sought for the final five lock extensions.

  • Authorization of specific ecosystem restoration projects. Project-specific authorization is sought for construction of fish passages at four dams and for engineering and design of a fifth passage. Project-level authorization is also sought for dam point control at two locations. The estimated cost is $250 million in federal funds.

  • Request for program authority for ecosystem restoration projects. Program authority is requested to allow a variety of ecosystem restoration projects to be pursued, subject to favorable project implementation reports. The costs of individual projects will not exceed $25 million, and the total program cost will be limited to $935 million. All initial construction costs are to be borne by the federal government; operation and maintenance, repair, replacements, and related costs will be funded by the federal, state, or local government, depending on project location.

  • Land acquisition. The plan proposes authorization for the acquisition, from willing sellers, of up to 35,000 acres of land for purposes of improving floodplain connectivity, protecting or enhancing wetlands, protecting and restoring riparian habitat, and other measures. The estimated $277 million cost will be shared 65:35 between the federal government and local sponsors.

  • Adaptive management of ecosystem restoration projects. The feasibility study identifies the need for adaptive implementation and man-



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