A dam sets this river's temperature, not the weather, so it can shift several degrees within hours when the release changes. Measured at the gauge. It also warms as it runs away from the dam.
Hatch predictions
Today's headline hatch shown — see all 8 active hatches hour by hour as a supporter.
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Hatch predictions
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Hatch predictions
Top prey shown — see all 3 as a supporter.
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Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Holds ESA-listed coho and Chinook salmon. We tell you they're here and when they tend to move, and we read the water for you — but never a catch score on listed fish, and never a nudge to go after them. Handle wild steelhead with care; they're the whole point.
EPA ATTAINS assessment unit 'Trinity River HU, Middle HA' (CAR1063102119990604163706), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Sediment. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.
Status is for the Clean Water Act assessment unit covering this reach.
EPA ATTAINS (Clean Water Act) · CAR1063102119990604163706
A dam sets this river's temperature, not the weather, so it can shift several degrees within hours when the release changes. Measured at the gauge. It also warms as it runs away from the dam.
Hatch predictions
Today's headline hatch shown — see all 8 active hatches hour by hour as a supporter.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top nymph shown — see all 2 guilds as a supporter.
Start free trial14-day free trial. Cancel anytime.
Hatch predictions
Top prey shown — see all 3 as a supporter.
Start free trial14-day free trial. Cancel anytime.
Based on species-occurrence records, not local invertebrate surveys.
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Holds ESA-listed coho and Chinook salmon. We tell you they're here and when they tend to move, and we read the water for you — but never a catch score on listed fish, and never a nudge to go after them. Handle wild steelhead with care; they're the whole point.
EPA ATTAINS assessment unit 'Trinity River HU, Middle HA' (CAR1063102119990604163706), 2024 Integrated Report. Aquatic Life use: Not Supporting. Listed impairment causes: Sediment. This is a Clean Water Act assessment-unit classification (the US analogue of WFD), not a live reading.
Status is for the Clean Water Act assessment unit covering this reach.
EPA ATTAINS (Clean Water Act) · CAR1063102119990604163706
Mayflies
Chironomids
Gammarids
