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| Dam Name: | COFFEEN LAKE DAM |
| Other Name: | COFFEEN LAKE |
| NID ID: | IL00135 |
| Longitude: | -89.38 |
| Latitude: | 39.03 |
| Map Section: | 23;7N;3W;3 |
| County: | MONTGOMERY |
| River: | MC DAVID BRANCH, SHOAL CREEK |
| State: | IL |
| Nearest City: | GREENVILLE |
| Distance: | 12 miles |
| Own_name Name: | Central Illinois Public Service Company |
| Owner Type: | PUBLIC UTILITY |
| Dam Designer: | Hurst-Roche, Inc. |
| Private Dam? | NO |
| Dam Type: | Earth |
| Purposes: | Other |
| Year Completed: | 1964 |
| Dam Length: | 1300.00 feet |
| Dam Height: | 70.00 feet |
| Maximum Discharge: | 8430 cu ft/sec |
| Maximum Storage: | 35800 acre-feet |
| Normal Storage: | 22000 acre-feet |
| Surface Area: | 1096 acres |
| Drainage Area: | 19.100000000 square miles |
| Hazard Potential: | SIGNIFICANT |
| Emergency Action Plan? | YES |
| Inspection Date: | 12/18/1996 |
| Inspection Frequency: | 3 |
| State Regulated Dam? | YES |
| State Regulating Agency: | IDNR |
| Spillway Type: | UNCONTROLLED |
| Spillway Width: | 100 feet |
| Outlet Gates: | U |
| Federal Funding Agency: | |
| Source Agency: |