Mongo Reservoir Dam
Mongo Reservoir Dam is a dam located in LaGrange County, Indiana, built in 1920. It carries a Low hazard potential classification and has a poor condition assessment.
About Mongo Reservoir Dam
The primary purpose of Mongo Reservoir Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Indiana Department Of Natural Resources (state). It impounds the Pigeon River.
The dam stands 17 feet tall and stretches 500 feet across, creates a reservoir covering 72 acres, has a maximum storage capacity of 504 acre-feet, and collects water from a drainage area of 213 square miles. Completed in 1920, the structure is over a century old.
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 07/20/2016.
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Location
| State | Indiana |
| County | LaGrange |
| River/Stream | Pigeon River |
| Coordinates | 41.68461, -85.28029 |
Physical Characteristics
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 500 ft |
| Year Completed | 1920 (106 years old) |
Storage & Hydraulics
| NID Storage | 504 acre-ft |
| Max Storage | 504 acre-ft |
| Normal Storage | 438 acre-ft |
| Surface Area | 72 acres |
| Drainage Area | 213 sq mi |
| Max Discharge | 642 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Indiana Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 07/20/2016 |
| Emergency Action Plan | No |
Identifiers
| NID ID | IN00349 |
| Federal ID | IN00349 |
| More Info | State Dam Safety Program |