Overview
Carlyle Lake is a reservoir in IL. Primary inflow is Kaskaskia River. It is managed by U.S. Army Corps of Engineers — St. Louis District.
The basin is characterized by about 24,580 acres of surface area. Shoreline and bottom character vary from protected coves and flats to deeper water, supporting a mix of open-water and nearshore habitats.
Carlyle Lake supports recreational boating and fishing. Public access is through area ramps, parks, and shoreline facilities where provided by the operator. Fishing and boating regulations are set by the relevant state wildlife agency.
Pool elevations are managed against conservation or full-pool elevation near 445 feet NGVD29; flood-control elevation near 462.5 feet. Monitoring current levels matters for ramp usability, shoreline access, and understanding storage relative to the published operating range.
Current Conditions
Carlyle Lake is currently 36.26 feet below full pool and has fallen slightly over the past week.
- 7-day trendFallingLatest movement can differ from the seven-day trend.
- 7-day changeUp 0.05 ft
- 30-day changeUp 0.05 ft
- Drought conditionsAbnormally Dry
About This Lake
Learn how this lake is managed, what affects its water level, and where Lake Insights gets its data.
Carlyle Lake is a 24,580-acre reservoir on the Kaskaskia River managed by U.S. Army Corps of Engineers — St. Louis District.





