Pingree Sawmill Dam dam
Pingree Sawmill Dam
The Pingree Sawmill Dam, located in Auburn, New Hampshire, is a locally-owned structure that serves primarily for recreation purposes. Built in 1812, this earth dam stands at a height of 12 feet and spans 80 feet in length, with a storage capacity of 87 acre-feet. Situated on Preston Brook, the dam is regulated by the NHDES Dam Bureau and undergoes regular state inspections and enforcement to ensure its safety and functionality.
With a spillway width of 50 feet and a maximum discharge capacity of 342 cubic feet per second, the Pingree Sawmill Dam poses a moderate risk level, with an undetermined hazard potential. Despite its age, the condition assessment of the dam is currently not rated, indicating a need for further evaluation to determine its structural integrity and resilience to potential risks. While emergency action plans and risk management measures are currently unspecified, the dam's location within the Rockingham County in New Hampshire highlights the importance of monitoring and maintaining this vital water resource for both recreational and environmental purposes 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 Pingree Sawmill Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Merrimack R Nr Goffs Falls | 8,350 cfs | → |
| Spicket River At North Salem | 0 cfs | → |
| Piscataquog River Near Goffstown | 137 cfs | → |
| Exeter River At Haigh Road | 52 cfs | → |
| Souhegan River At Merrimack | 235 cfs | → |
| Beaver Brook At North Pelham | 31 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Pingree Sawmill Dam.
Boat launches
- Massabesic Lake Boat Launch
- Onway Lake Boat Launch
- Scobie Pond Boat Launch
- Beaver Lake Boat Launch
- Phillips Pond Boat Launch
Campgrounds
- Remote Campsite
- Windham Town Forest Tent Platforms
- Saddleback Campground
- Old Stage Campground
- Camp Spaulding
- Tidewater Campground
Paddle runs
Track Pingree Sawmill 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 Pingree Sawmill Dam
Where does the data for Pingree Sawmill 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 Undetermined 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 Pingree Sawmill Dam.