Hoosier Energy Reservoir Dam
Hoosier Energy Reservoir Dam is an earth dam located in Sullivan County, Indiana, built in 1980. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Hoosier Energy Reservoir Dam
The primary purpose of Hoosier Energy Reservoir Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Hoosier Energy Rural Electric Cooperative, Inc (public utility). It impounds the Turtle Creek.
The dam stands 66 feet tall and stretches 1,100 feet across, creates a reservoir covering 1,550 acres, has a maximum storage capacity of 55,070 acre-feet, and collects water from a drainage area of 28 square miles. Completed in 1980, the structure is 46 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 09/21/2020.
At 66 feet, this dam is taller than 96% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Indiana dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Indiana |
| County | Sullivan |
| River/Stream | Turtle Creek |
| Coordinates | 39.04308, -87.52599 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 66 ft |
| Dam Height | 58 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 55,070 acre-ft |
| Max Storage | 55,070 acre-ft |
| Normal Storage | 13,800 acre-ft |
| Surface Area | 1,550 acres |
| Drainage Area | 28 sq mi |
| Max Discharge | 18,362 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | HOOSIER ENERGY RURAL ELECTRIC COOPERATIVE, INC |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/21/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00523 |
| Federal ID | IN00523 |
| More Info | State Dam Safety Program |