4. FLOW RECOMMENDATIONS 



Cross sectional data were collected in a 321 foot riffle-run sequence 

 located approximately at stream mile 3.6 {T2N, R13W, Sec 13D). Five cross 

 sections were placed within this sequence. The WETP program was calibrated 

 to field data collected at discharges of 87.6, 55.0 and 10.1 cfs. 



The relationship between wetted perimeter and discharge for a composite 

 of three riffle cross sections is shown in Figure 7. Lower and upper inflection 

 points occur at 10 and 13 cfs. Based on an evaluation of the existing fishery, 

 recreational use potential and flow contribution to the Big Hole River, a flow 

 of 12 cfs is recaiimended for the low flow period (July 1 - April 30). Due to 

 a lack of long-term flow data, recommendations for the high flow period (flay 1 - 

 June 30) cannot be derived for Seymour Creek. 



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