Dole Marsh Dam dam
Dole Marsh Dam
Dole Marsh Dam, located in Northwood, New Hampshire, is a state-owned structure primarily used for recreation purposes. Completed in 1976, this earth dam stands at 8 feet tall and stretches 250 feet in length, creating a reservoir with a normal storage capacity of 50.4 acre-feet. The dam overlooks an unnamed brook and is regulated by the NHDES Dam Bureau, ensuring its safety and compliance with state regulations.
With a low hazard potential and satisfactory condition assessment, Dole Marsh Dam poses minimal risk to the surrounding area. The dam's spillway, with a width of 12 feet, is uncontrolled, allowing excess water to safely flow downstream. Despite its moderate risk assessment, the dam has not undergone any recent modifications and has regular inspections, ensuring its continued functionality and safety for both recreational and environmental purposes.
Water resource and climate enthusiasts can appreciate Dole Marsh Dam for its role in providing recreational opportunities while also serving as a vital component of water management and conservation efforts in the region. Its presence highlights the importance of maintaining and regulating dams to ensure safety, sustainability, and environmental protection for the surrounding community and ecosystem.
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 Dole Marsh Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Suncook River At North Chichester | 221 cfs | → |
| Oyster River Near Durham | 11 cfs | → |
| Isinglass R At Rochester Neck Rd | 53 cfs | → |
| Cocheco River Near Rochester | 97 cfs | → |
| Lamprey River Near Newmarket | 119 cfs | → |
| Soucook River | 22 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dole Marsh Dam.
Boat launches
- Pleasant Lake Boat Launch
- Northwood Lake Boat Launch
- Pawtuckaway Pond Boat Launch
- Canaan Back Road Barrington
- Jenness Pond Boat Launch
- Chestnut Pond Boat Launch
Campgrounds
- Saddleback Campground
- Remote Campsite
- Old Stage Campground
- Camp Spaulding
- Windham Town Forest Tent Platforms
- Tidewater Campground
Track Dole Marsh 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 Dole Marsh Dam
Where does the data for Dole Marsh 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 Low 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 Dole Marsh Dam.