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sediment is carried on the rising limb of the annual snowmelt hydro graph than on the falling limb. Thus, some low flows might not be necessary to maintain an equilibrium sediment mass balance wherein the entire load delivered to the stream is transported downstream. A rule of thumb used elsewhere has been to claim all flows greater than the discharge above which 70% of the long-term annual load is transported. At the study site, that flow was about 40 m3/s. We assumed that sediment normally transported by lower discharges could be transported by flows greater than 40 m3/s because of the supply-limited nature of the stream. Flows higher than 40 m3 Is were capable of entraining gravel exposed on bars in the study reach. Entrainment occurred at many bars near bankfull discharge of 105 m3/s (3,700 ft3/s), which has a recurrence interval of about 3 years on the partial duration series for the period following completion of Taylor Draw Dam (1984-97). In this c.ase, bankfull discharge was much greater than the effective discharge for suspended load, which we estimated to be between 48 and 82 m3/s (1,000 - 2,900 ft3/s). Our study plan precluded determination of the effective discharge for bedload, but this discharge was likely larger than that for suspended load. Thehigh volume of suspended load, however, and the larger proportion of the bed covered by fine sediment suggested that a habitat maintenance flow claim be based on ensuring that all suspendable sediment be transported through the study reach. The White River underwent an annual cycle of scour and fill that changed the elevation of . the bed by as much as 1 meter. The range of scour and fill defined the active layer ofthe bed that can be mobilized during flooding. These flows thus had the ability to reshape instream habitats. The changes in bed elevation during the spring flood suggested that much of the sediment 5