Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectLower Granite
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 1 - Dec 30)
Total Number of Fish Observed104405
Percent of Total Run Analyzed [Number Observed]100 % [104405]
Temperature Tailrace Exposure Index17.35 C
Percent of Fish Exposed [Number Exposed]89.3 % [93252]
Number of Days Fish Exposed134
Middle 80% of Run Period (Sep 8 - Oct 25)
Number of Fish Observed84545
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [84545]
Temperature Tailrace Exposure Index18.05 C
Percent of Fish Exposed [Number Exposed]100 % [84545]
Number of Days Fish Exposed48
Middle 50% of Run Period (Sep 18 - Oct 10)
Number of Fish Observed54105
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [54105]
Temperature Tailrace Exposure Index18.36 C
Percent of Fish Exposed [Number Exposed]100 % [54105]
Number of Days Fish Exposed23
Run Dates
First Day of RunMar 1
5% of Run passedAug 24
10% of Run passedSep 8
50% of Run passedSep 29
90% of Run passedOct 25
95% of Run passedNov 5
Last Day of RunDec 30
Date(s) When Temperature Tailrace Crosses 15 C
Jun 10, Jun 21, Jun 22, Oct 27