Shakamak Lake Dam
Shakamak Lake Dam is an earth dam located in Sullivan County, Indiana, built in 1930. It carries a Low hazard potential classification and has a poor condition assessment.
About Shakamak Lake Dam
The primary purpose of Shakamak Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Paul Sipples (state). It impounds the Big Branch.
The dam stands 45 feet tall and stretches 1,150 feet across, creates a reservoir covering 53 acres, has a maximum storage capacity of 2,500 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 03/01/2018.
At 45 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Indiana |
| County | Sullivan |
| River/Stream | Big Branch |
| Coordinates | 39.17581, -87.24518 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 1,150 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 2,500 acre-ft |
| Max Storage | 2,500 acre-ft |
| Normal Storage | 1,860 acre-ft |
| Surface Area | 53 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 269 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Paul Sipples |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 03/01/2018 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00420 |
| Federal ID | IN00420 |
| More Info | State Dam Safety Program |