Prock Lake Dam
Prock Lake Dam is an earth dam located in Hendricks County, Indiana, built in 1979. It carries a High hazard potential classification and has a fair condition assessment.
About Prock Lake Dam
The primary purpose of Prock Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Randy Prock (private). It impounds the Unnamed Tributary West Fork White Lick Creek.
The dam stands 57 feet tall and stretches 900 feet across, creates a reservoir covering 34 acres, has a maximum storage capacity of 772 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1979, the structure is 47 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 07/25/2019.
At 57 feet, this dam is taller than 95% 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 | Hendricks |
| River/Stream | Unnamed Tributary West Fork White Lick Creek |
| Coordinates | 39.73814, -86.51000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 57 ft |
| Dam Height | 57 ft |
| Dam Length | 900 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 772 acre-ft |
| Max Storage | 772 acre-ft |
| Normal Storage | 525 acre-ft |
| Surface Area | 34 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,882 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | RANDY PROCK |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 07/25/2019 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00504 |
| Federal ID | IN00504 |
| More Info | State Dam Safety Program |