Harrisonville Dam dam
Harrisonville Dam
Harrisonville Dam, located in South Harrison Township, New Jersey, is a state-owned earth dam on the Oldmans Creek. Designed primarily for recreational purposes, this dam stands at a height of 15 feet with a length of 425 feet, providing a normal storage capacity of 187 acre-feet in its 17-acre surface area. The dam has a significant hazard potential but has been assessed as satisfactory in condition as of August 2020.
Under the regulatory oversight of the New Jersey Department of Environmental Protection (NJDEP), Harrisonville Dam is subject to state permitting, inspection, and enforcement. The dam is not federally owned or funded, falling under the jurisdiction of the state. With a notable maximum discharge capacity of 1845 cubic feet per second, the dam plays a crucial role in managing water resources in the region and ensuring public safety.
Despite lacking certain data points like the year of completion and spillway type, Harrisonville Dam remains a key infrastructure for water management in Gloucester County, New Jersey. With a designated emergency action plan (EAP) and regular inspection schedule, the dam is well-equipped to handle any potential risks and emergencies, highlighting its importance in safeguarding the local community and surrounding areas from the impacts of extreme weather events and climate variability.
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 Harrisonville Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Raccoon Creek Near Swedesboro Nj | 16 cfs | → |
| Salem River At Woodstown Nj | 6 cfs | → |
| Little Ease Rn Nr Clayton Nj | 2 cfs | → |
| Shellpot Creek At Wilmington | 2 cfs | → |
| Cohansey River At Seeley Nj | 19 cfs | → |
| Chester Creek Near Chester | 34 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Harrisonville Dam.
Boat launches
- Harding Highway Pittsgrove Township
- Centerton Road Elmer
- Hawks Bridge Road 740, Salem County
- Crown Point Road Oldmans
- Plant Road Penns Grove
- Lakeside Avenue 440, Deptford
Campgrounds
- Yogi Bear Tall Pines Campground
- Tinicum Island Primitive Campsite
- Parvin State Park
- Lums Pond Youth Camping
- Indian Branch Park Campground
- Atsion - Wharton State Forest
Fishing spots
Track Harrisonville 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 Harrisonville Dam
Where does the data for Harrisonville 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 Harrisonville Dam.