Englishtown Lake Dam dam
Englishtown Lake Dam
Englishtown Lake Dam, located in Monmouth County, New Jersey, serves as a vital recreational resource for the local community. Built in 1959, this earth dam stands at a height of 13 feet and stretches 300 feet in length, creating a reservoir with a storage capacity of 24 acre-feet. The dam regulates Matchaponix Brook, offering opportunities for boating, fishing, and other outdoor activities in Enlishtown Borough.
Despite its primary purpose of recreation, Englishtown Lake Dam is classified as having a significant hazard potential and a poor condition assessment. The dam is regulated by the New Jersey Department of Environmental Protection, with regular inspections conducted to ensure its structural integrity and safety. The last inspection took place in December 2020, highlighting the ongoing efforts to maintain the dam and mitigate any potential risks associated with its operation.
As climate change continues to impact water resources and infrastructure, the maintenance and upkeep of Englishtown Lake Dam are crucial to safeguarding the surrounding community from potential flooding events. With a drainage area of 7.2 square miles and a maximum discharge capacity of 779 cubic feet per second, the dam plays a vital role in managing water flow and protecting downstream areas. As such, ongoing monitoring, risk assessment, and emergency preparedness are essential to ensuring the long-term safety and functionality of this important water resource in New Jersey.
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 Englishtown Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Manalapan Brook At Spotswood Nj | 17 cfs | → |
| Big Brook Near Marlboro Nj | 4 cfs | → |
| Deep Run At Old Bridge Nj | 3 cfs | → |
| Swimming River Near Red Bank Nj | 4 cfs | → |
| Lawrence Bk At Westons Mills Nj | 16 cfs | → |
| Manasquan River At Squankum Nj | 27 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Englishtown Lake Dam.
Boat launches
- Ravine Drive Matawan
- Middlesex County
- River Road Sayreville
- South 3rd Avenue Highland Park
- Raritan Reach Road 28, South Amboy
- Second Street Perth Amboy
Track Englishtown Lake 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 Englishtown Lake Dam
Where does the data for Englishtown Lake 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 Englishtown Lake Dam.