Schmidgall Dam 1
Schmidgall Dam 1 is an earth dam located in Sangamon County, Illinois, built in 1977. It carries a Low hazard potential classification.
About Schmidgall Dam 1
The primary purpose of Schmidgall Dam 1 is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Carl Schmidgall;carl Schmidgall (private). It impounds the Tr- Sangamon River near Petersburg.
The dam stands 30 feet tall and stretches 350 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 08/05/2025.
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Location
| State | Illinois |
| County | Sangamon |
| Nearest City | Petersburg |
| River/Stream | Tr- Sangamon River |
| Coordinates | 39.89286, -89.66529 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 350 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 155 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | CARL SCHMIDGALL;CARL SCHMIDGALL |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 08/05/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IL40139 |
| Federal ID | IL40139 |
| More Info | State Dam Safety Program |