16 



15 



u. 14 



a. 13 



ui 



a 



o 



UI 



»- 

 ^ 12 



II 



10 



I 

 10 



20 

 FLOW (CFS) 



30 



40 



Figure 3. The relationship between wetted perimeter and flow for a 

 composite of four riffle cross sections in American Creek. 



- 35 



