Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectLower Granite
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 1 - Jul 1)
Total Number of Fish Observed1747
Percent of Total Run Analyzed [Number Observed]100 % [1747]
Tailrace TDG Percent Exposure Index109.67 %
Percent of Fish Exposed [Number Exposed]17.1 % [300]
Number of Days Fish Exposed44
Middle 80% of Run Period (Mar 4 - May 9)
Number of Fish Observed1427
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1427]
Tailrace TDG Percent Exposure Index109.76 %
Percent of Fish Exposed [Number Exposed]17.5 % [251]
Number of Days Fish Exposed25
Middle 50% of Run Period (Mar 13 - Apr 13)
Number of Fish Observed896
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [896]
Tailrace TDG Percent Exposure Index108.94 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 1
5% of Run passedMar 2
10% of Run passedMar 4
50% of Run passedMar 26
90% of Run passedMay 9
95% of Run passedJun 24
Last Day of RunJul 1
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 14, May 5, May 6, May 27, May 30, Jun 15