Poole Reservoir Dam dam
Poole Reservoir Dam
Poole Reservoir Dam, located in Jaffrey, New Hampshire, was completed in 1926 and serves as a vital recreation spot in the area. Standing at a height of 14 feet and with a length of 350 feet, this concrete dam holds a storage capacity of 30 acre-feet, providing ample water resources for recreational activities. The dam is regulated by the NHDES Dam Bureau and undergoes regular inspections to ensure its safety and compliance with state regulations.
Despite its significant hazard potential and poor condition assessment, the dam's risk level is considered moderate. With a spillway width of 95 feet and the ability to discharge up to 571 cubic feet per second, the dam is equipped to handle potential flood events. However, there is a need for improved risk management measures and emergency action plans to mitigate any potential dangers. Water resource and climate enthusiasts can appreciate the importance of maintaining and monitoring dams like Poole Reservoir Dam to ensure the safety of surrounding communities and the sustainability of water resources 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 Poole Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Nubanusit Bk Blw Macdowell Dam Nr Peterborough Nh | 31 cfs | → |
| S Br Ashuelot River At Webb | 25 cfs | → |
| Contoocook River At Peterborough | 118 cfs | → |
| Otter Brook Below Otter Brook Dam | 12 cfs | → |
| Millers River Near Winchendon | 121 cfs | → |
| Ashuelot River Above The Branch | 21 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Poole Reservoir Dam.
Boat launches
- Thorndike Pond Boat Launch
- Perkins Pond Boat Launch
- Frost Pond Boat Launch
- Dublin Pond Boat Launch
- Stone Pond Boat Launch
- Contoocook Lake Boat Launch
Campgrounds
- Mt Monadnock State Park Campground
- Camp Wanocksett
- Swanzey Lake Camping Area
- Pilgrim Pines Camping Area
- Falls Brook Shelter
- Wheelock Park Campground
Paddle runs
- First Bridge Upstream On Route 100 To Confluence With West River
- Headwaters To First Bridge Upstream On Route 100
- Headwaters To Confluence With West River (End Of Sherman Road)
- Sewall's Island To Manchester Street Bridge
- Headwaters To North Of Searsburg Reservoir
- Begins In Franklin To Sewall's Island
Track Poole Reservoir 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 Poole Reservoir Dam
Where does the data for Poole Reservoir 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 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 Poole Reservoir Dam.