Henrys Fork Island Park Dam Fishing Report
Based on live releases/levels and local weather.
Plan Henrys Fork Island Park Dam (ID) trips with real-time outflow, lake elevation, and weather pulled from public USACE sensors near Idaho Falls. See species notes and where-to-fish access points.
Henrys Fork Island Park Dam snapshot
USBR Station ID ISL Datum Correction 1929-1988 (CorpsCon 6) = 3.921 Ft Henrys Fork Island Park Dam sits near Idaho Falls, ID and is monitored by the U.S. Army Corps of Engineers NWDP district. Coordinates: 44.4189°, -111.3966°. Also known as ISLAND PARK DAM & RESERVOIR NEAR ISLAND PARK 1SW.
- Latest release
- 1,120 CFS
- Recorded 2026-06-19 06:45 UTC
- Latest lake level
- 3.96 ft
- Recorded 2026-06-19 06:45 UTC
Moderate-to-strong release: current seams and eddies can fish well, but stay alert near tailwaters and steep banks.
Source: U.S. Army Corps of Engineers CWMS public feeds. See the Henrys Fork Island Park Dam water level & flow charts for 7‑day history.