Summit Lake Dam dam
Summit Lake Dam
Summit Lake Dam, located in Stockholm, New Jersey, is a privately owned earth dam that serves primarily for recreational purposes. The dam, standing at a height of 5 feet and with a length of 250 feet, impounds the waters of the Wallkill River, providing a maximum storage capacity of 37 acre-feet and a normal storage of 22 acre-feet. The dam has a surface area of 11 acres and drains an area of 0.04 square miles.
Managed by the New Jersey Department of Environmental Protection, Summit Lake Dam is classified as a significant hazard potential structure with a satisfactory condition assessment as of the last inspection in July 2020. The dam does not have an emergency action plan in place and has not been modified in recent years. With a maximum discharge capacity of 101 cubic feet per second, the dam plays a crucial role in flood control and water resource management in the region.
Despite its relatively small size, Summit Lake Dam is a vital part of the water infrastructure in Sussex County, New Jersey. The dam's presence not only supports recreational activities but also contributes to the overall ecological health of the Wallkill River watershed. As climate change continues to impact water resources, the proper maintenance and regulation of dams like Summit Lake Dam will be crucial in ensuring the safety and sustainability of water supplies for both human and environmental needs.
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 Summit Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Eb Paulins Kill Near Lafayette Nj | 19 cfs | → |
| Pequannock R At Macopin Intake Dam Nj | 96 cfs | → |
| Green Pond Brook At Picatinny Arsenal Nj | 10 cfs | → |
| Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj | 8 cfs | → |
| Wanaque River At Awosting Nj | 43 cfs | → |
| West Brook Near Wanaque Nj | 51 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Summit Lake Dam.
Boat launches
- Greenwood Lake Turnpike Ringwood
- Winding Waters Trail Town Of Warwick
- North Corporate Drive 2, Riverdale
- Lakeside Avenue Pompton Lakes
- Blue Lake Road Town Of Warwick
- Jefferson Lake Road Sussex County
Track Summit 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 Summit Lake Dam
Where does the data for Summit 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 Summit Lake Dam.