Jones Pond Dike dam
Jones Pond Dike
Jones Pond Dike, also known as Ellis Hatch Dike, is a state-owned structure located in Brookfield, New Hampshire, along the TR Merrymeeting River. Built in 1981, this earth dam stands at a height of 12 feet and spans 270 feet in length, with a storage capacity of 145 acre-feet. Its primary purpose is for fire protection, stock, or small fish pond, serving as a vital resource for the surrounding area.
Despite its importance, Jones Pond Dike is currently assessed to be in poor condition with a significant hazard potential. The last inspection in April 2020 revealed the need for improvement, as it falls under the jurisdiction of the NHDES Dam Bureau for regulation and enforcement. With a moderate risk assessment rating of 3, there is a pressing need for proper risk management measures to be implemented to ensure the safety and integrity of the structure.
Water resource and climate enthusiasts can appreciate the critical role of Jones Pond Dike in safeguarding the local community and environment. As a key asset for fire protection and water storage, its significance cannot be overstated. With proper maintenance and oversight, this dam can continue to fulfill its essential functions while mitigating potential risks and ensuring long-term resilience in the face of changing climate dynamics.
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 Jones Pond Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cocheco River Near Rochester | 97 cfs | → |
| Isinglass R At Rochester Neck Rd | 53 cfs | → |
| Suncook River At North Chichester | 221 cfs | → |
| Mousam River Near West Kennebunk | 225 cfs | → |
| Bearcamp River At South Tamworth | 164 cfs | → |
| Winnipesaukee River At Tilton | 1,610 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Jones Pond Dike.
Boat launches
- Merrymeeting Lake Boat Launch
- Lovell Lake Boat Launch
- Lake Winnipesaukee Boat Launch
- Crescent Lake Boat Launch
- Great East Lake Boat Launch
Campgrounds
Paddle runs
- Begins In Franklin To Sewall's Island
- Sewall's Island To Manchester Street Bridge
- 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
Track Jones Pond Dike 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 Jones Pond Dike
Where does the data for Jones Pond Dike 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 Jones Pond Dike.