Gordon Hill Water Supply Dam Dam
Gordon Hill Water Supply Dam
Gordon Hill Water Supply Dam, located in New Hampton, New Hampshire, is a vital local government-owned structure designed to provide water supply to the area. Constructed in 1934, this earth dam stands at a height of 14.5 feet and has a storage capacity of 9.7 acre-feet, serving as a key resource for the region's water needs. The dam is regulated by the New Hampshire Department of Environmental Services Dam Bureau, ensuring its safety and compliance with state standards.
With a moderate risk assessment and a significant hazard potential, the Gordon Hill Water Supply Dam has been deemed to be in satisfactory condition as of the last assessment in 2014. Although it has an uncontrolled spillway with a width of 12 feet, the dam has undergone regular inspections every four years to ensure its structural integrity and overall safety. In case of emergencies, the dam's Emergency Action Plan (EAP) was last revised in 2000, emphasizing the importance of preparedness and risk management measures for this essential water supply infrastructure.
Situated on Dickerman Brook, the Gordon Hill Water Supply Dam plays a crucial role in providing water to the local community while also being a regulated and inspected structure by the state authorities. Its historical significance, construction details, and risk assessment highlight the importance of proper maintenance and oversight to ensure the continued safety and functionality of this essential water resource in New Hampshire.
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 Gordon Hill Water Supply Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Smith River Near Bristol | 20 cfs | → |
| Winnipesaukee River At Tilton | 304 cfs | → |
| Pemigewasset River At Plymouth | 272 cfs | → |
| Merrimack River At Franklin Junction | 535 cfs | → |
| Baker River Near Rumney | 42 cfs | → |
| Blackwater River Near Webster | 19 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Gordon Hill Water Supply Dam.
Boat launches
See all →
Campgrounds
See all →
River runs
See all →
About Gordon Hill Water Supply Dam
Where does the data for Gordon Hill Water Supply 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 below 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.
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.