Heitmans East Pond Dam
Heitmans East Pond Dam is an earth dam located in St. Clair County, Illinois, built in 1974. It carries a Significant hazard potential classification.
About Heitmans East Pond Dam
The primary purpose of Heitmans East Pond Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is private-owned. It impounds the Trib Negro Hollow near East Louis.
The dam stands 30 feet tall and stretches 225 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 223 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 07/11/2020.
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Location
| State | Illinois |
| County | St. Clair |
| Nearest City | East Louis |
| River/Stream | Trib Negro Hollow |
| Coordinates | 38.57405, -90.00718 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 225 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 223 acre-ft |
| Max Storage | 223 acre-ft |
| Normal Storage | 121 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 625 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 07/11/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IL00804 |
| Federal ID | IL00804 |
| More Info | State Dam Safety Program |