Delaware Lake Dam dam
Delaware Lake Dam
Delaware Lake Dam, located in Knowlton Township, New Jersey, is a state-regulated earth dam on the Delawanna Creek, primarily used for recreational purposes. Standing at a height of 21 feet and stretching 515 feet in length, the dam provides a storage capacity of 307 acre-feet and covers a surface area of 38 acres. With a drainage area of 2.6 square miles, the dam has a low hazard potential but is currently assessed to be in poor condition as of its last inspection in February 2007.
Owned by the state of New Jersey and under the regulatory oversight of the New Jersey Department of Environmental Protection, Delaware Lake Dam poses minimal risk but requires attention to address its current state of disrepair. Despite its poor condition, the dam continues to serve as a popular recreational spot in Warren County, offering opportunities for boating, fishing, and wildlife observation. With a historical significance dating back to its completion year, the dam remains a focal point in the local community, attracting visitors and enthusiasts alike.
Efforts to improve the condition of Delaware Lake Dam and ensure its long-term safety are crucial to preserving its recreational value and minimizing potential risks associated with dam failure. As part of ongoing state inspections and regulatory measures, maintaining the dam's structural integrity and enhancing emergency preparedness protocols are essential to safeguarding the surrounding area and ensuring a sustainable future for this vital 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 Delaware Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Yards Creek Near Blairstown Nj | 1 cfs | → |
| Beaver Brook Near Belvidere Nj | 14 cfs | → |
| Delaware River At Belvidere Nj | 4,150 cfs | → |
| Brodhead Creek At Minisink Hills | 207 cfs | → |
| Paulins Kill At Blairstown Nj | 44 cfs | → |
| Pequest River At Pequest Nj | 49 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Delaware Lake Dam.
Boat launches
- Kittatinny Access Area
- Front Street Belvidere
- East Bangor Lake
- Poxono Access Area In Nj
- Pp&Amp;L
- Martins Creek Access Area
Track Delaware 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 Delaware Lake Dam
Where does the data for Delaware 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 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 Delaware Lake Dam.