Winding Brook Road Dam dam
Winding Brook Road Dam
Winding Brook Road Dam, located in Londonderry, New Hampshire, is a privately owned concrete dam built in 1980 for recreational purposes on the Beaver Brook. The dam stands at a height of 8 feet and has a length of 140 feet, with a storage capacity of 9.95 acre-feet. Despite its recreational use, the dam is also state-regulated by the NHDES Dam Bureau, with inspections and enforcement measures in place to ensure its safety and compliance with regulations.
The dam's spillway, with a width of 28 feet, is uncontrolled, posing a significant hazard potential and currently assessed as being in poor condition. The last inspection in August 2017 revealed a need for improvement, with a risk assessment rating of moderate. It is vital that the dam owner takes necessary measures to address the dam's condition and reduce the risk to downstream communities and the environment. With its proximity to residential areas and the potential impact of failure, the Winding Brook Road Dam serves as a reminder of the importance of proper maintenance and management of water resources in the face of changing climate conditions.
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 Winding Brook Road Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Beaver Brook At North Pelham | 31 cfs | → |
| Spicket River At North Salem | 0 cfs | → |
| Souhegan River At Merrimack | 235 cfs | → |
| Merrimack R Nr Goffs Falls | 8,350 cfs | → |
| Spicket River Near Methuen | 16 cfs | → |
| Piscataquog River Near Goffstown | 137 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Winding Brook Road Dam.
Boat launches
- Kendall Pond Boat Launch
- Scobie Pond Boat Launch
- Beaver Lake Boat Launch
- Robinson Pond Boat Launch
- Claveau Landing
- Canoe Launch Windham
Campgrounds
- Windham Town Forest Tent Platforms
- Remote Campsite
- Grotonwood
- Camp Evergreen
- Saddleback Campground
- Pearl Hill Campground
Paddle runs
Track Winding Brook Road 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 Winding Brook Road Dam
Where does the data for Winding Brook Road 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 Winding Brook Road Dam.