200 



Comparison of the wetted 

 perimeter and flow rela- 

 tionship derived by the 

 IFG-4 and WSP hydraulic 

 simulation models for a 

 composite of six cross- 

 sections in reach #1 of 

 the Big Hole River. 



300 



400 500 600 700 



FLOW (cfs) 



800 



900 



1000 



90 



