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Using a mathematical model, a minimum streamflow hydrograph was constructed to keep the cobble bed at RM 16.5 free of sand during the squawfish spawning period. Other periods of the hydrograph were defined by the historic mean baseflow and results from PHABSIM models. The model used the NEC-2 water surface profile program to compute hydraulic conditions for each subreach. With the computed hydraulics, the bedload transport capacity was estimated (Meyer-Peter and Mueller equation) and with this estimated data the suspended sediment transport capacity was estimated using the Einstein method. Total estimated sediment transport is compared with the supply from the previous subreach and the deficit or surplus distributed uniformly throughout the subreach. This procedure was preformed using weekly averages of discharge and sediment. O'Brien discussed model development, calibration, and assumptions within his report (1984). rThe minimum hydrograph required 1,220,000 acre-feet (1685 cfs) annually to maintain the channel substrate in the present condition, leaving 288,000 acre- Lfeet for potential depletion from the average annual volume of 1,508,000 acre- feet. Elliott et al. (1984) reported discharge and sediment sampling results at Deerlodge Park in 1982 and 1983. The daily mean discharge recorded at Deerlodge Park was highly correllated (r2=0.98) with the sum of the daily discharges recorded at the Little Snake near Lily and Yampa River near Maybell stations. Because of the high correlation, 43 years of streamflow record at Deerlodge Park were constructed using the sum of the Lily and Maybell daily discharges. Sediment transport equations were determined for total sediment, suspended, bedload, and several particle size ranges. Annual total sediment discharge was approximately 2.0 million tons/year, which agrees closely with the value estimated by Andrews (1978). Transport equations were also derived using the Modified Einstein method; these over-estimated the bedload component of total sediment discharge for the higher flows. For this reason, subsequent load computations utilized the transport equations based on measured values. A total sediment budget analysis was preformed for the Deerlodge Park reach using several altered. scenarios of sediment and water discharge. The model was presented as a planning tool that can be utilized to determine combinations of mean annual streamflow and sediment supply for specified flow-frequencies to maintain a balanced sediment budget, thereby minimizing accompanying channel adjustments. O'Brien (1987) reviewed and updated the discharge and sediment data utilized in previous work by himself and the US Geological Survey. A correction coefficient was applied to previously derived sediment transport relations to s reduce bias produced from using log-transformations. Y