Stewart Dam dam
Stewart Dam
Stewart Dam is a privately owned structure located in Sussex, New Jersey, along the Black River-TR. Built in 1965, this earth dam stands at 14 feet tall and spans 300 feet in length, with a storage capacity of 200 acre-feet and a normal storage of 150 acre-feet. The dam serves the primary purpose of water supply, providing essential resources to the surrounding area.
The dam is regulated by the New Jersey Department of Environmental Protection (NJDEP) and undergoes regular inspections, with its last assessment in August 2020 rating its condition as fair. With a hazard potential categorized as significant, Stewart Dam plays a crucial role in managing water resources in the region, demonstrating the importance of maintaining its structural integrity. Despite its age, the dam continues to fulfill its purpose effectively, highlighting the significance of ongoing monitoring and maintenance practices.
As a key component of the water supply infrastructure in the area, Stewart Dam plays a vital role in ensuring water availability for the community. With Congressman Josh S. Gottheimer representing the Congressional District 05 of New Jersey, the dam's operations and maintenance contribute to the overall water management efforts in the region. As climate change impacts water resources, Stewart Dam's significance in water supply highlights the need for sustainable management practices and continued regulatory oversight to safeguard its functionality for the future.
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 Stewart Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wanaque River At Awosting Nj | 43 cfs | → |
| Eb Paulins Kill Near Lafayette Nj | 19 cfs | → |
| Pequannock R At Macopin Intake Dam Nj | 96 cfs | → |
| West Brook Near Wanaque Nj | 51 cfs | → |
| Ringwood Creek Near Wanaque Nj | 38 cfs | → |
| Wanaque R At Wanaque Nj | 14 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Stewart Dam.
Boat launches
- Winding Waters Trail Town Of Warwick
- Greenwood Lake Turnpike Ringwood
- Blue Lake Road Town Of Warwick
- Laurel Meadow Drive Town Of Warwick
- Ringwood-Ramapo Trail Ringwood
- Lakeside Avenue Pompton Lakes
Track Stewart 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 Stewart Dam
Where does the data for Stewart 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 Stewart Dam.