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Elk Hair Caddis, Zebra Midge, Pheasant Tail Nymph, Copper John, Parachute Adams, Woolly Bugger

Crooked River Fishing Report – May 15, 2026

Below Bowman Dam | Crooked River Ranch | Terrebonne Area

The Mother’s Day Caddis hatch has arrived on the Crooked River, and while the fishing conditions have become more nuanced with rising irrigation-season flows, determined anglers who adjust their tactics are still finding excellent sport in Central Oregon’s finest tailwater.

Current Conditions

The USGS gauge 14087400 (Crooked River below Opal Springs, near Culver) is recording 1,180 cfs as of this morning. Important note for anglers: This downstream gauge captures flow below the Opal Springs confluence, which adds significant natural spring volume. The prime tailwater fishing section — the 10–12 miles immediately downstream of Bowman Dam — is running at lower flows than this gauge indicates, but has seen a meaningful increase from the early-May baseline of roughly 250 cfs as irrigation releases from Prineville Reservoir ramp up for the season. Water temperature is a favorable 55°F (12.6°C), keeping fish active despite the elevated flows.

Clarity in the Bowman Dam tailwater section is off-color due to elevated releases, with visibility reduced from the gin-clear conditions of winter and early spring. The regulated tailwater tends to clear faster than free-flowing streams — expect improved clarity as flows stabilize. The lower section near Terrebonne and Crooked River Ranch will see the most turbidity impact.

The Hatch Report

Despite the challenging flows, the Mother’s Day Caddis are showing up in strong numbers — olive and tan caddis ranging from #14–#18 have been blanketing the water in the afternoon and evening hours. Local reports from Confluence Fly Shop (5/8) describe a “biblical” caddis emergence, though fish haven’t been rising as readily as in past years. Sub-surface caddis pupa and emerger imitations are dramatically outperforming dry flies right now, likely because elevated flows are making surface feeding less efficient for the fish.

Midges and Blue-Winged Olives, which dominated the early spring fishing, have receded as water temperatures climbed. Look for sporadic BWO activity on overcast afternoons — these fish never forget their midge roots, and a size #20–22 midge pupa trailing behind a larger fly is a deadly combination year-round on this river.

Top Fly Recommendations

• Elk Hair Caddis (#14–#16, olive/tan with green egg sac variant) — the signature fly of this season; fish it in low-light windows when fish are rising
• Zebra Midge (#18–#22, black/red) — never leave home without it on the Crooked; deadly as a point fly in any indicator rig
• Pheasant Tail Nymph (#14–#18) — a versatile searching nymph that covers mayfly, caddis, and midge larva imitation
• Copper John (#14–#16, red or copper) — the elevated flows demand more weight; a Copper John as the lead fly gets your rig down where the fish are holding
• Parachute Adams (#16–#18) — reliable surface option during the caddis and any PMD activity; use as a searching dry in calmer water
• Woolly Bugger (#8–#10, olive or black) — surprisingly effective in high, off-color water; swing it through the deeper runs and undercut banks that hold fish stacked up from the flows

Best Access Points

Above the Opal Springs confluence (prime tailwater): Lower Crooked River Recreation Area off HWY 97 north of Terrebonne provides the most accessible entry. The BLM road paralleling the river offers multiple pull-outs for the first 8 miles below Bowman Dam. Crooked River Ranch area provides access from the canyon rim with trails down to the water. Focus your efforts in the first 5 miles below Bowman Dam where the dam’s thermal regulation keeps temperatures most stable. At elevated flows, work the softer inside seams, eddy lines, and back-channels rather than fighting the main current.

Hazards & Notes

With flows significantly above the spring norm, wading is hazardous — the Crooked’s basalt and algae-coated rocks are notoriously slick even at low water. Studded felt soles are essential. Do not attempt to cross the main channel. Flows are expected to remain elevated or increase through June as Prineville Reservoir releases peak for irrigation demand. Watch USGS gauge 14087400 for trend data. The river is open to fishing year-round below Bowman Dam — no closures are currently in effect.

USGS data is provisional and subject to revision. Gauge 14087400 (CROOKED RIVER BELOW OPAL SPRINGS, NEAR CULVER, OR) reflects flows downstream of Opal Springs — the fishing section above Opal Springs confluence runs at lower volumes. Always check current conditions before your trip.

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