East Loch Mcwilliams Dam
East Loch Mcwilliams Dam is an earth dam located in St. Tammany Parish, Louisiana, built in 1983. It carries a Significant hazard potential classification and has a fair condition assessment.
About East Loch Mcwilliams Dam
The primary purpose of East Loch Mcwilliams Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by The Highlands Homeowners Association Of St. Tammany, Inc. (private).
The dam stands 12 feet tall and stretches 570 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1983, the structure is 43 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 12/02/2024.
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Location
| State | Louisiana |
| County | St. Tammany |
| Nearest City | Covington |
| Coordinates | 30.64154, -90.08711 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 10 ft |
| Dam Length | 570 ft |
| Year Completed | 1983 (43 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Normal Storage | 51 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 593 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | The Highlands Homeowners Association of St. Tammany, Inc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 12/02/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | LA00718 |
| Federal ID | LA00718 |
| More Info | State Dam Safety Program |