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

Crooked River — Below Bowman Dam Tailwater Report

Date: September 29, 2026  |  Gauge: USGS 14087400 (Crooked River below Opal Springs)  |  Flow: 1,320 cfs  |  Water Temp: 54.3°F (12.4°C)  |  Clarity: Slightly Off

The Crooked River tailwater is fishing well for those who know where to look, but elevated flows of 1,320 cfs (USGS gauge below Opal Springs) are the story of the day. This is considerably above typical tailwater conditions and has pushed fish into predictable holding lies — the good news is that the trout are still actively feeding, with one of the season's signature hatches in full swing. Wading is challenging at current levels; expect deeper, faster currents at the usual crossing points. Anglers are encouraged to fish from the bank in accessible areas or use trekking poles for stability. Chest waders with cleated wading boots are essential.

Hatches & Surface Activity

September is prime time for the Mahogany Dun hatch on the Crooked — one of the river's best-kept secrets — and it's firing right now. Look for #14–16 auburn-winged duns lifting off the riffles and slow runs in the late morning through early afternoon, typically peaking between 11 AM and 2 PM. Fish that are sipping Mahogany Duns can be selective; present a Parachute Adams #14–16 or a CDC Mahogany Dun in the film and be patient. It's some of the most rewarding dry-fly fishing you'll find in Central Oregon.

Blue-Winged Olives are also showing well in the afternoons as the angle of light drops — overcast days can extend the hatch considerably. Fish #18–20 BWO patterns in the slower seams. As evening approaches, keep an eye out for a smattering of Elk Hair Caddis activity near the willow-lined banks.

Nymphing

With flows running elevated, nymphing is the most consistent approach for covering water efficiently. The Zebra Midge #20–22 remains the Crooked River's year-round workhorse — fish it deep in the slower runs near structure. Pair it with a Pheasant Tail Nymph #16–18 as a lead fly, or add a Copper John #16 for extra weight in the faster currents. Heavily weighted rigs with additional split shot are advisable given the current depth and flow speed.

Best Access Points

• Crooked River Ranch: Multiple bank-access points along Chinook Drive with good pull-outs. Some sections offer slower runs behind boulders — ideal at elevated flows. Fish the seams and eddies.
• Lone Pine Bridge (Lower Section): Good bank access both above and below the bridge. Riffles above holding fish in shoulder-deep water.
• Steelhead Falls Area: Spectacular scenery — wild native rainbows hold tight to the plunge pool and slower pockets. Trail walk required (~1.5 miles round trip). Wading near the falls at current levels is NOT recommended.
• Lower Canyon (above Lake Billy Chinook): Bank fishing only at current flows. Large pool fish on the inside bends.

Hazards & Reminders

Do not attempt to wade at crossing points used in lower-flow conditions — the river is up and moving fast. Wading staff/poles are strongly recommended throughout. Rattlesnakes remain active along sun-warmed rocky trails and ledges through September; watch every step especially when scrambling for bank access. Check current ODFW regulations — the Crooked River below Bowman Dam is designated Wild Trout water with special regulations (artificial lures only, catch-and-release for trout).

Flow data: USGS provisional, gauge 14087400 — Crooked River below Opal Springs, near Culver, OR. Readings as of 5:00 AM PDT September 29, 2026.

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