Lake Hildegarde Dam dam
Lake Hildegarde Dam
Lake Hildegarde Dam, located in Washingtonville, New York, was completed in 1929 and serves multiple purposes, including fire protection, stock, and as a small fish pond. The dam is privately owned and is regulated by the New York State Department of Environmental Conservation. It has a dam height of 10 feet and a length of 260 feet, with a storage capacity of 87 acre-feet and a surface area of 13 acres.
The dam's spillway is uncontrolled with a width of 75 feet, and it is situated on the TR-Moodna Creek. The dam has a significant hazard potential and is inspected every four years, with the last inspection conducted in May 2019. While the condition assessment is currently not rated, the risk assessment indicates a moderate risk level.
Lake Hildegarde Dam provides a vital water resource for the local community and is also used for recreational purposes. Its location in Orange County, New York, makes it a key component in water management and climate resilience efforts in the region. As a focal point for water enthusiasts and climate activists, the dam highlights the importance of sustainable water resource management and the need for ongoing monitoring and maintenance to ensure its safety and longevity.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Lake Hildegarde Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ramapo River At Ramapo Ny | 60 cfs | → |
| Wanaque River At Awosting Nj | 10 cfs | → |
| Mahwah River Near Suffern Ny | 7 cfs | → |
| Ringwood Creek Near Wanaque Nj | 8 cfs | → |
| Ramapo River At Suffern Ny | 40 cfs | → |
| Ramapo River Near Mahwah Nj | 67 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Hildegarde Dam.
Boat launches
- Old East Main Street Town Of Wallkill
- Laurel Meadow Drive Town Of Warwick
- Bear Mountain Bridge Road Cortlandt
- State Highway 208 3081, Wallkill
- Broadway Buchanan
- Battlefield Road Town Of Stony Point
Campgrounds
- Round Pond Military
- Winding Hills Park
- Beaver Pond Campsite
- Beaver Pond - Harriman State Park
- Camping For Hikers On Ballfield Graymoor Center
- Blue Mountain Reservation
Fishing spots
Paddle runs
- Kent Bridge To Boardman Bridge
- Pond Downstream Of Shepaug Reservoir Dam, Marked By Service Road Bridge To Ends In Backwaters Of Lake Lillinonah, Near Roxbury Falls
- Begins Downstream Of The Borough Of Bantam, At Stoddard Road Bridge To The Confluence With The Shepaug River
Track Lake Hildegarde Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Lake Hildegarde Dam
Where does the data for Lake Hildegarde Dam come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Significant hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Lake Hildegarde Dam.