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

 to field data collected at flows of 31.8, 16.6, 11.2, and 6.7 cfs. 



The relationship between wetted perimeter and dishcarge for a composite 

 of four riffle cross sections is shown in Figure 3. Lower and upper inflection 

 points occur at 4 and 8 cfs. Based on an evaluation of the existing fishery, 

 recreational potential and headwater contribution to water quantity and 

 quality in the Big Hole River, a flow of 6 cfs is recommended for the low 

 flow period (July 1 - April 30). Due to a lack of long-term flow data, 

 recommendations for the high flow period (May 1 - June 30) cannot be derived 

 for American Creek. 



34 



