George Pond Dam dam
George Pond Dam
George Pond Dam, located in Enfield, New Hampshire, is a local government-owned earth dam built in 1911 for recreational purposes along the Knox River. Standing at a height of 9.5 feet and with a storage capacity of 894 acre-feet, the dam serves as a popular spot for outdoor activities in the region. Despite its historical significance, the dam's hazard potential is classified as high, with a poor condition assessment, highlighting the need for regular inspections and maintenance to ensure public safety.
Managed by the NHDES Dam Bureau, George Pond Dam is regulated, inspected, and enforced by state agencies to meet permitting and safety standards. The dam's spillway type is uncontrolled, and its moderate risk level indicates the importance of implementing risk management measures. With a drainage area of 5.1 square miles and a maximum discharge of 443 cubic feet per second, the dam plays a crucial role in water resource management and flood control in the Grafton County area.
For water resource and climate enthusiasts, George Pond Dam provides a fascinating case study on the intersection of historical infrastructure, recreational use, and risk management in the face of changing environmental conditions. As discussions around dam safety and resilience continue to evolve, understanding the complexities of maintaining aging structures like George Pond Dam becomes paramount for ensuring sustainable water management practices in the region.
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 George Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Connecticut River At West Lebanon | 9,730 cfs | → |
| Ottauquechee River At North Hartland | 427 cfs | → |
| Ompompanoosuc River At Union Village | 16 cfs | → |
| Smith River Near Bristol | 257 cfs | → |
| White River At West Hartford | 1,580 cfs | → |
| Sugar River At West Claremont | 555 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near George Pond Dam.
Boat launches
- George Pond Boat Launch
- Crystal Lake Boat Launch
- Grafton Pond Boat Launch
- Mcdaniels Marsh Boat Launch
- Mascoma Lake Boat Launch
- Tewksbury Pond Boat Launch
Campgrounds
- Moose Mountain Shelter
- Camp Wilmot
- Clark Brook Campsite
- Velvet Rocks Shelter
- Cardigan Campsites
- Storrs Pond Rec Area
Paddle runs
- Begins In Franklin To Sewall's Island
- Thornton Railroad Bridge To Bridgewater/Bristol Town Line
- Woodstock/Thornton Town Line To Thornton Railroad Bridge
- Sewall's Island To Manchester Street Bridge
- Source Above Fr 55 To Proclamation Boundary (Stony Brook)
- Headwaters To Woodstock, Vt
Track George 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 George Pond Dam
Where does the data for George 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 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 George Pond Dam.