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2.0 Planning And Development 2-2 April 2004 Subbasin. The Recovery Program also identified and negotiated access to numerous floodplain sites on lands administered by State and Federal agencies. In 1996, a Floodplain Restoration Plan was developed and implemented to remove or breach levees that separated key State and Federal floodplain sites from the main river channel to allow more frequent flooding at lower river levels (Flo Engineering 1996, 1997; Lentsch et al. 1996a; Crowl et al. 1998a). By 2001, restoration had occurred at 13 sites in the upper basin, totaling 730-1,815 acres, depending on river stage, including levee breaches at eight sites in the Green River Subbasin, totaling 274 acres at 13,000 cfs. Over a 10-year period, easements to most available key floodplain sites had been acquired, floodplain reconstruction had been initiated with ongoing evaluations, and hatchery propagation was providing fish for field studies of growth and survival and for augmentation of wild stocks (Nelson and Soker 2002). In 2002, the Habitat Enhancement Project entered a new phase of habitat restoration that changed the focus from acquisition and to evaluation, reconstruction, and management. In January, 2003, the Biology Committee of the Recovery Program identified the need for comprehensive floodplain management plans for the Green River Subbasin and the Upper Colorado River Subbasin. The purpose for these plans was to assimilate and synthesize information from past floodplain restoration activities and to identify objectives and management actions for reaches of each subbasin, as well as for specific floodplain sites. These management plans will be used as guidance for recovery of the razorback sucker, and possibly for the bonytail. 2.2 Plan Development This Plan was developed at two levels: (a) by priority river reaches within the Green River Subbasin, and (b) by floodplain sites. Priority reaches were determined by integrating information from the Draft Floodplain Habitat Synthesis Report (Nelson and Soker 2002), Research Priorities For Geomorphology Research (LaGory et al. 2003), and a Floodplain Model (Valdez 2004). Role in recovery, objectives, and management actions were identified for each reach. The second level of this Plan was development of objectives and management actions for specific sites that are available to, acquired by, and/or managed by the Recovery Program. Each site description includes: background, role in recovery, and objectives and management actions. Objectives and management actions may differ among sites, depending on geomorphic, hydraulic, hydrologic, chemical, and biological characteristics. Success criteria, uncertainties and risks, research needs, and contingencies are also identified for all sites. 2.3 Role Of Propagation And Augmentation Program The success of this Plan depends heavily on implementation of the razorback sucker and bonytail propagation and augmentation program (Nesler et al. 2003), and the genetics management plan (Czapla 1999). This program and plan are vital to establishment of sufficient numbers of fish in the wild in order to identify patterns of habitat use, spawning sites, drift and entrainment of wild-produced larvae, and appropriate flow and floodplain management strategies