Willow Grove Dam dam
Willow Grove Dam
Willow Grove Dam, located in Pittsgrove Township, New Jersey, is a privately owned structure that plays a crucial role in managing water resources in the area. Built on the Maurice River, this earth dam stands at a height of 10 feet and spans 1500 feet in length, with a storage capacity of 512 acre-feet. With a significant hazard potential and fair condition assessment, the dam is regulated by the New Jersey Department of Environmental Protection (NJDEP) and undergoes regular inspections to ensure its safety and functionality.
The dam serves a primary purpose of 'Other' and is designed to handle a maximum discharge of 2160 cubic feet per second. It is situated in Salem County, New Jersey, within Congressional District 02, represented by Jeff Van Drew. The dam's location and design are essential for protecting the surrounding area from flooding and managing water resources effectively. With a history of inspections and a comprehensive Emergency Action Plan (EAP), Willow Grove Dam demonstrates a commitment to safety and risk management in the face of potential emergencies related to water flow and storage.
As an integral part of the local water infrastructure, Willow Grove Dam stands as a testament to the importance of effective dam management in mitigating climate-related risks and ensuring sustainable water resource management. With its strategic location, storage capacity, and regulatory oversight, the dam plays a crucial role in safeguarding the community and environment from the impacts of flooding and water scarcity. By upholding high standards of maintenance and emergency preparedness, Willow Grove Dam exemplifies best practices in dam safety and resilience in the face of changing climate conditions.
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 Willow Grove Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Maurice River At Norma Nj | 70 cfs | → |
| Little Ease Rn Nr Clayton Nj | 2 cfs | → |
| Cohansey River At Seeley Nj | 19 cfs | → |
| Great Egg Harbor R Nr Blue Anchor Nj | 16 cfs | → |
| Great Egg Harbor River At Folsom Nj | 33 cfs | → |
| Great Egg Harbor R Nr Sicklerville Nj | 4 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Willow Grove Dam.
Boat launches
- Centerton Road Elmer
- Harding Highway Pittsgrove Township
- Piney Point Trail Cumberland County
- East Broad Street 13, Bridgeton
- Wma Access Road Cumberland County
- Wma Access Road Cumberland County
Campgrounds
- Parvin State Park
- Yogi Bear Tall Pines Campground
- Indian Branch Park Campground
- Atsion - Wharton State Forest
- Mullica River Campground
- Tinicum Island Primitive Campsite
Fishing spots
Track Willow Grove 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 Willow Grove Dam
Where does the data for Willow Grove 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 Willow Grove Dam.