Giboney Lake Dam
Giboney Lake Dam is an earth dam located in Henry County, Indiana, built in 1965. It carries a High hazard potential classification and has a poor condition assessment.
About Giboney Lake Dam
Giboney Lake Dam is a dam in Henry, Indiana. The dam is owned by Allegheny Ludlum Steel Corporation (private). It impounds the Unnamed Tributary Castle Run.
The dam stands 32 feet tall and stretches 350 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 171 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1965, the structure is well into its service life at over 50 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 08/28/2020.
At 32 feet, this dam is taller than 76% of dams nationwide.
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 | Henry |
| River/Stream | Unnamed Tributary Castle Run |
| Coordinates | 39.93460, -85.39033 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 350 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 171 acre-ft |
| Max Storage | 171 acre-ft |
| Normal Storage | 88 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 2,643 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Allegheny Ludlum Steel Corporation |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 08/28/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00115 |
| Federal ID | IN00115 |
| More Info | State Dam Safety Program |