Lake Hildegarde Dam is an earth dam located in Orange County, New York, built in 1929. It carries a Significant hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 260 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Lake Hildegarde Dam
The primary purpose of Lake Hildegarde Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Richard J Winkler (private). It impounds the Tr-moodna Creek near Washingtonville.
The dam stands 10 feet tall and stretches 260 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 87 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1929, the structure is well-established, with more than 75 years of service.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 10/03/2023.
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Location
| State | New York |
| County | Orange |
| Nearest City | Washingtonville |
| River/Stream | Tr-moodna Creek |
| Coordinates | 41.38778, -74.19389 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 260 ft |
| Year Completed | 1929 (97 years old) |
Storage & Hydraulics
| NID Storage | 87 acre-ft |
| Max Storage | 87 acre-ft |
| Normal Storage | 47 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Richard J Winkler |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 10/03/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY01132 |
| Federal ID | NY01132 |
| More Info | State Dam Safety Program |