Mahoney Pond dam
Mahoney Pond
Mahoney Pond, also known as Stratton Snowmaking Pond, is a private water resource located in Winhall, Vermont. Owned by a private entity, this recreational pond is regulated by the Vermont Department of Environmental Conservation and is classified as a high hazard potential structure. The dam, completed in 1997 by TECHNICON, is an earth-type structure with a height of 89 feet and a length of 2600 feet, providing a storage capacity of 499 acre-feet.
Situated along the Winhall River, Mahoney Pond covers a surface area of 15 acres and serves as a popular spot for recreational activities. Despite its primary purpose for recreation, the pond's dam poses a potential risk due to its high hazard classification. Regular inspections, last conducted in June 2017, ensure the structure's satisfactory condition and adherence to safety guidelines. With its picturesque location and important role in the local ecosystem, Mahoney Pond stands as a vital water resource for the community while highlighting the importance of proper management and maintenance in the face of climate change challenges.
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 Mahoney Pond -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| West River At Jamaica | 419 cfs | → |
| West River Below Townshend Dam Near Townshend | 46 cfs | → |
| Saxtons River At Saxtons River | 19 cfs | → |
| Williams River Near Rockingham Vt | 197 cfs | → |
| Mettawee River Near Pawlet | 215 cfs | → |
| Black River At North Springfield | 300 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mahoney Pond.
Boat launches
- Gale Meadow Road Londonderry
- Winhall Station Road Londonderry
- Town Shed Road Manchester
- Dufresne Pond Road Manchester
- Ice House Road Londonderry
- Somerset
Campgrounds
- Stratton View Tenting Area
- Winhall Brook
- North Bourne Pond
- South Bourne Pond
- Grout Pond
- Grout Pond Recreation Area
Fishing spots
Track Mahoney Pond 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 Mahoney Pond
Where does the data for Mahoney Pond 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 High 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 Mahoney Pond.