← back to the run pagefull-page version
RIVERBETA · pocket sheet

Whitaker Bridge to Johnsrud Park

Blackfoot River · II-III · 5.9 mi · ≈3 hrs · May–September
NO850 cfs
steady over 24h · water 62°F
prime 1,500–6,000 cfs
sunset 9:06 PM

Mile by mile

  • 1Thibodeau RapidII-III · RM 17 — About two miles below Whitaker Bridge by American Whitewater's prose (their POI math says closer to a mile and a half). Large rock right-center as the river drops; safest route on the right (Big Sky Fishing). FWP's float map grades it Class II. Flow-dependent.
  • 2The LedgeII · RM 12.8 — A surf wave a quarter mile above Johnsrud that comes in when spring water is up — parking directly above and across the road, popular for park-and-play laps (American Whitewater).
Field notes
Whitaker Bridge to Johnsrud Park river map
P Whitaker BridgeT Johnsrud Parkshuttle 5.9 mi · ≈22 min
Last 7 days · USGS 123400001,024919790996MONWEDFRIMON

USGS 12340000 · Conditions as of Aug 3, 2026, 5:30 AM · Areas Of Smoke, 73°F. Printed Aug 3, 2026, 5:57 AM— levels swing, wood moves. Verify the gauge and scout anything you can't read from upstream.