Pattison Lake Dam
Pattison Lake Dam is an earth dam located in Floyd County, Indiana, built in 1945. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Pattison Lake Dam
The primary purpose of Pattison Lake 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 Michael J And Beth A Pattison (private). It impounds the Unnamed Tributary Little Indian Creek.
The dam stands 32 feet tall and stretches 215 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1945, the structure is well-established, with more than 75 years of service.
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 01/03/2019. That was 7 years ago, which is on the longer end for a high-hazard structure.
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 | Floyd |
| River/Stream | Unnamed Tributary Little Indian Creek |
| Coordinates | 38.33716, -85.86353 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 30 ft |
| Dam Length | 215 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 28 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | MICHAEL J AND BETH A PATTISON |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/03/2019 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00503 |
| Federal ID | IN00503 |
| More Info | State Dam Safety Program |