Figure 8.— The 12-year 

 average monthly 

 streamflow from Half- 

 way Creek and Miller 

 Creek drainages and 

 the monthly precipi- 

 tation at the Rice 

 Climatic Station 

 (1952-1964). 



o 



I- 

 < 



O 



HI 

 GC 



a. 

 cc 

 O 



< 



UJ 



H 



6 p o Halfway Creek 

 A Miller Creek 

 I I Rice Climatic Station 



Oct. Nov. Dec. Jan 



Feb. Mar. Apr. May Jun. 

 MONTHS 



Aug. Sep. 



Because of its southwest exposure, the Halfway Creek drainage shows a rapid 

 release of water from the snowpack in the spring. Timing of the peak spring flow 

 fluctuates considerably from year to year, a reflection of the influence of temperature. 

 Table 1 illustrates the relationship between seasonal streamflow from the Halfway Creek 

 and Miller Creek drainages prior to trenching. 



Table 1.-- Average streamflow from the Halfway Creek and Miller 

 Creek drainages before trenching 



Streamflow ' 



Months 





Streamflow 





period : 



: Halfway 



Creek 



: Miller 



Creek 







Inches 



Percent 



Inches 



Percent 



Low streamflow 

 (July through February) 



8 



6.25 



33.2 



5.51 



33.1 



Spring snowmelt 

 (March through June) 



4 



12.59 



66.8 



11.12 



66.9 



Water year 

 (October through September) 



12 



18.84 



100.0 



16.63 



100.0 



9 



