FIGURE 13. T.'vical seasonal variation in surface elevation of the Kootenai River 

 at three river cross sections, with and without the proposed dam 

 assuming a forebay elevation of 610m (2,000 ft) and the pattern of 

 discharge shown in Figure 12 (SOURCE: Sewell and Associates 1979). 



2000H- 



!990- 



I&80- 



1970 



River cross-section no. I 



r-6IG 



With Project- 



00% of timej Y/////A \^^°f= 0^ ^'^rie 



605 



^-1-601 



i2 2000- 



a> 



With Project- 



River cross-section no. 4 



-610 



tf) 



E 



c 

 o 



o 



605 



CO 



2000 - 



1990- 



1980 



With Project 



-610 



-605 



-I 1 \ 1 1 1 1 1 I I r 



Jan Feb Mar Apr May Jun July Aug Sep Oct Nov Dec 



86 



