Hermit Hill Farm Pond Dam dam
Hermit Hill Farm Pond Dam
Hermit Hill Farm Pond Dam, also known as Whipple School, is a privately owned earth dam located in Lyme, New Hampshire. Built in 1975 by USDA NRCS, this dam serves primarily for recreational purposes, offering a serene getaway for water resource and climate enthusiasts. With a dam height of 13 feet and a storage capacity of 189 acre-feet, the structure overlooks TR Trout Brook and covers a surface area of 25 acres.
Managed by the NHDES DAM BUREAU, Hermit Hill Farm Pond Dam has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in August 2013. The dam's spillway type is uncontrolled, with a width of 3 feet, and it has a maximum discharge capacity of 475 cubic feet per second. Despite its moderate risk rating, the dam has not experienced any significant modifications or EAP preparations, suggesting a stable and well-maintained infrastructure for water conservation and recreational activities.
While the dam poses minimal risk to downstream communities, the surrounding Grafton County landscape benefits from the dam's presence, providing a tranquil setting for outdoor enthusiasts and wildlife alike. With regular inspections and a solid foundation, Hermit Hill Farm Pond Dam stands as a testament to responsible water resource management and sustainable recreation in the heart of New Hampshire's scenic countryside.
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 Hermit Hill Farm Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ompompanoosuc River At Union Village | 16 cfs | → |
| Baker River Near Rumney | 367 cfs | → |
| Connecticut River At West Lebanon | 6,790 cfs | → |
| White River At West Hartford | 1,370 cfs | → |
| Ottauquechee River At North Hartland | 394 cfs | → |
| East Orange Branch At East Orange | 26 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hermit Hill Farm Pond Dam.
Boat launches
- Post Pond Boat Launch
- Reservoir Pond Boat Launch
- Indian Pond Boat Launch
- Upper Baker Pond Boat Launch
- Lower Baker Pond Boat Launch
- Armington Lake Boat Launch
Campgrounds
- Roaring Brook Campsite
- Trapper John Shelter
- Smarts Mountain Campsite
- Hexacuba Shelter
- Moose Mountain Shelter
- Underhill Campsite
Paddle runs
- Thornton Railroad Bridge To Bridgewater/Bristol Town Line
- Woodstock/Thornton Town Line To Thornton Railroad Bridge
- Headwaters At Profile Lake To Southern Boundary Of Franconia Notch State Park
- Source Above Fr 55 To Proclamation Boundary (Stony Brook)
- Begins In Franklin To Sewall's Island
- Headwaters To Woodstock, Vt
Track Hermit Hill Farm Pond 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 Hermit Hill Farm Pond Dam
Where does the data for Hermit Hill Farm Pond 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 Low 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 Hermit Hill Farm Pond Dam.