Locust Pond Dam dam
Locust Pond Dam
Locust Pond Dam, located in Tyngsborough, Massachusetts, is a privately owned structure with a primary purpose of recreation. Completed in 1949, this gravity dam stands at a height of 14 feet and has a NID storage capacity of 135 acre-feet. The dam overlooks an unnamed stream entirely within Tyngsborough and serves as a recreational spot for water resource and climate enthusiasts in the area.
Managed by the Department of Conservation and Recreation, the Locust Pond Dam is regulated, inspected, and enforced by the state of Massachusetts. With a significant hazard potential and a satisfactory condition assessment as of September 2015, the dam poses a moderate risk level (3) according to the data. Despite lacking certain emergency preparedness measures like an EAP, the dam continues to provide a valuable recreational resource for the community, with a surface area of 19.2 acres and a normal storage capacity of 72 acre-feet.
Overall, Locust Pond Dam serves as a notable structure in Middlesex County, Massachusetts, offering both recreational opportunities and a source of water storage for the surrounding area. With its historic significance dating back to the mid-20th century, the dam remains a focal point for water resource and climate enthusiasts seeking to explore and appreciate the natural beauty of 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 Locust Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Nashua River At East Pepperell | 531 cfs | → |
| Merrimack River Bl Concord River At Lowell | 11,800 cfs | → |
| Beaver Brook At North Pelham | 35 cfs | → |
| Concord R Below R Meadow Brook | 311 cfs | → |
| Squannacook River Near West Groton | 83 cfs | → |
| Souhegan River At Merrimack | 256 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Locust Pond Dam.
Boat launches
- Flint Pond Road, Tyngsborough
- Musquash Pond Boat Launch
- Willowdale Avenue 1-53, Dracut
- Pawtucket Boulevard 936-970, Lowell
- Winchester Street Boat Launch
- Claveau Landing
Campgrounds
- Grotonwood
- Windham Town Forest Tent Platforms
- Pearl Hill Campground
- Damon Pond Campground
- Camp Evergreen
- Minha Casa
Paddle runs
Track Locust Pond 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 Locust Pond Dam
Where does the data for Locust Pond 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 Locust Pond Dam.