to originate in Wasson Creek, also inhabited Nevada Spring Creek in very low densities, 

 where historically abundant (Frank Potts, personal communication). 



In 2004 and 2005, restoration monitoring occurred on several fronts. We 

 completed measurements of the new channel, monitored water temperatures at several 

 locations, surveyed fish populations in upper and lower reaches of the spring creek, and 

 documented the introduction and rapid escalation of whirling disease into the spring 

 creek system. 



The post-project habitat survey completed between 2002 and 2004 measured 

 channel bedforms (pools, riffles) and channel pattern. Objectives for the Nevada Spring 

 Creek habitat survey were to characterize the new channel consistent with a pre-project 

 habitat survey (Pierce 1 990). The post-project survey began from a randomly selected 

 pool (1-4) near the spring source and proceeded downstream, measuring every fourth 

 pool and preceding 

 downstream riffle. 

 Pool measurements 

 included total pool 

 length, maximum 

 pool depth and 

 wetted width at max 

 pool depth. Riffle 

 measurements 

 included riffle crest 

 depth and wetted 

 widths at the riffle 

 crest. Residual pool 

 depth was 



calculated by 



subtracting 

 maximum pool 

 depth form riffle 

 crest depth. Aerial 



90 



80 



70 



60 



50 



40 



30 



'00 '01 '03 '04 '05 



'00 '01 '03 '04 '05 



'00 '01 '03 '04 '05 



Figure 33. Comparison of summer water temperatures three years pre- 

 project (2001-03) and two years post-project (2004-05) for Nevada 

 Spring Creek near the mouth. 



photographs were used to calculate sinuosity 

 project comparison are outlined 

 in Table 3. 



Water temperature 



monitoring was completed at 

 four locations in the spring 

 Creek (Appendix H), including 

 near the mouth. Survey results 

 from this site show a 5-10 °F 

 cooling influence during the 

 summer period compared to 

 the pre-project condition 

 (Figure 33). 



In 2004 and 2005, FWP 

 continued monitoring fish 



Summary results of the pre-and post 



■ BuH 



■ cutthroat 



■ Brown 



■ Mtn whitefish 



N. 

 Pickminnow 



■ Redside 

 shiner 



Figure 34. Combined species composition for lower Nevada Spring 

 Creek, 2004 and 2005. 



m 



