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 - Jul 20)
Total Number of Fish Observed2606
Percent of Total Run Analyzed [Number Observed]100 % [2606]
Temperature Tailrace Exposure Index12.18 C
Percent of Fish Exposed [Number Exposed]37.4 % [975]
Number of Days Fish Exposed36
Middle 80% of Run Period (Mar 7 - Jul 16)
Number of Fish Observed2138
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [2138]
Temperature Tailrace Exposure Index12.15 C
Percent of Fish Exposed [Number Exposed]35.2 % [754]
Number of Days Fish Exposed32
Middle 50% of Run Period (Mar 20 - Jul 7)
Number of Fish Observed1341
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1341]
Temperature Tailrace Exposure Index11.6 C
Percent of Fish Exposed [Number Exposed]24.7 % [332]
Number of Days Fish Exposed23
Run Dates
First Day of RunMar 1
5% of Run passedMar 3
10% of Run passedMar 7
50% of Run passedApr 12
90% of Run passedJul 16
95% of Run passedJul 19
Last Day of RunJul 20
Date(s) When Temperature Tailrace Crosses 15 C
Jun 10, Jun 21, Jun 22