Illinois River OBrien LD Fishing Report
Based on live releases/levels and local weather.
Plan Illinois River OBrien LD (IL) trips with real-time outflow, lake elevation, and weather pulled from public USACE sensors near Chicago. See species notes and where-to-fish access points.
Illinois River OBrien LD snapshot
Illinois River at O'Brien Lock and Dam Illinois River OBrien LD sits near Chicago, IL and is monitored by the U.S. Army Corps of Engineers MVR district. Coordinates: 41.6500°, -87.5611°. Also known as IL01.
- Latest release
- Not reported
- Latest lake level
- 1.05 ft
- Recorded 2026-06-18 13:00 UTC
Release data is currently unavailable—use extra caution near tailwaters and fast water.
Source: U.S. Army Corps of Engineers CWMS public feeds. See the Illinois River OBrien LD water level & flow charts for 7‑day history.