Benson Pond Dam 1
Benson Pond Dam 1 is an earth dam located in Sangamon County, Illinois, built in 1978. It carries a Low hazard potential classification.
About Benson Pond Dam 1
Benson Pond Dam 1 is a dam in Sangamon, Illinois. The dam is owned by Gordon Benson;gordon Benson (private). It impounds the Richard Creek near Petersburg.
The dam stands 29 feet tall and stretches 300 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 35 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Illinois |
| County | Sangamon |
| Nearest City | Petersburg |
| River/Stream | Richard Creek |
| Coordinates | 39.87390, -89.79786 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 300 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 35 acre-ft |
| Max Storage | 35 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 330 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | GORDON BENSON;GORDON BENSON |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Available |
| Last Inspection | 08/05/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IL40137 |
| Federal ID | IL40137 |
| More Info | State Dam Safety Program |