Alloway Lake Dam dam
Alloway Lake Dam
Alloway Lake Dam, located in Alloway Township, New Jersey, is a significant earthen dam constructed in 1949 primarily for recreational purposes. With a height of 20 feet and a length of 700 feet, the dam impounds Alloway Creek, creating a surface area of 108 acres and a storage capacity of 490 acre-feet. The dam is inspected by the New Jersey Department of Environmental Protection (NJDEP) and is regulated, permitted, and enforced by state authorities, ensuring its safety and integrity.
Despite being categorized as having a significant hazard potential, Alloway Lake Dam is assessed to be in satisfactory condition as of the last inspection in May 2021. The dam has a regular inspection frequency of every two years to monitor its structural integrity and overall safety. While there are no associated structures or locks, the dam serves as a crucial recreational resource for the local community, offering opportunities for fishing, boating, and other water-based activities. As a key feature in the area, Alloway Lake Dam plays an essential role in water resource management and climate resilience efforts in Salem County, New Jersey.
With its historical construction and ongoing maintenance, Alloway Lake Dam stands as a vital piece of infrastructure supporting recreation and water management in the region. Its presence along Alloway Creek not only enhances the natural environment but also provides valuable opportunities for outdoor enjoyment. As water resource and climate enthusiasts, understanding the significance of structures like Alloway Lake Dam is essential for promoting sustainable practices and ensuring the safety and resilience of our water systems in the face of a changing climate.
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 Alloway Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Salem River At Woodstown Nj | 6 cfs | → |
| Cohansey River At Seeley Nj | 19 cfs | → |
| Raccoon Creek Near Swedesboro Nj | 16 cfs | → |
| Maurice River At Norma Nj | 73 cfs | → |
| Shellpot Creek At Wilmington | 2 cfs | → |
| Little Ease Rn Nr Clayton Nj | 2 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Alloway Lake Dam.
Boat launches
- Hawks Bridge Road 740, Salem County
- Chestnut Road 291, Cumberland County
- Piney Point Trail Cumberland County
- Centerton Road Elmer
- Stow Neck Road Salem County
- Harding Highway Pittsgrove Township
Campgrounds
- Yogi Bear Tall Pines Campground
- Parvin State Park
- Lums Pond Youth Camping
- Tinicum Island Primitive Campsite
- Indian Branch Park Campground
Fishing spots
Track Alloway 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 Alloway Lake Dam
Where does the data for Alloway 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 Alloway Lake Dam.