Hidden Valley Lake Dam
Hidden Valley Lake Dam is an earth dam located in Dearborn County, Indiana, built in 1973. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Hidden Valley Lake Dam
The primary purpose of Hidden Valley Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hidden Valley Lake Property Owners Association (private). It impounds the Doublelick Run.
The dam stands 135 feet tall and stretches 1,200 feet across, creates a reservoir covering 139 acres, has a maximum storage capacity of 7,750 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1973, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/11/2019.
At 135 feet, this dam is taller than 99% 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 | Dearborn |
| River/Stream | Doublelick Run |
| Coordinates | 39.15492, -84.83576 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 135 ft |
| Dam Height | 135 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 7,750 acre-ft |
| Max Storage | 7,750 acre-ft |
| Normal Storage | 6,320 acre-ft |
| Surface Area | 139 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 13,271 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | HIDDEN VALLEY LAKE PROPERTY OWNERS ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/11/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IN00100 |
| Federal ID | IN00100 |
| More Info | State Dam Safety Program |