Lake Gilman Dam dam
Lake Gilman Dam
Lake Gilman Dam, located in Elk Township, New Jersey, is a vital structure that serves the primary purpose of recreation. Built in 1928, this earth dam stands at a height of 14 feet and spans 350 feet in length, creating a reservoir with a normal storage capacity of 75 acre-feet. Situated on Raccoon Creek, this dam is regulated by the New Jersey Department of Environmental Protection and undergoes regular inspections to ensure its safety and functionality.
With a hazard potential rated as high, Lake Gilman Dam has been assessed as satisfactory in condition as of March 2021. Despite its age, the dam is well-maintained and has a designated emergency action plan in place. The surrounding area, encompassing 12 acres of surface water and a drainage area of 4 square miles, provides recreational opportunities for the local community. The dam's location in Gloucester County also falls within Congressional District 02, represented by Jeff Van Drew.
As a significant feature in the water resource management of New Jersey, Lake Gilman Dam stands as a testament to the importance of maintaining infrastructure for both safety and recreation. Its historical significance, combined with its role in ensuring water availability for recreational activities, highlights the intersection of human-made structures and natural resources in the face of climate challenges. The ongoing maintenance and regulatory oversight of this dam demonstrate a commitment to sustainable water management practices in the region.
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 Lake Gilman Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Raccoon Creek Near Swedesboro Nj | 15 cfs | → |
| Little Ease Rn Nr Clayton Nj | 2 cfs | → |
| Salem River At Woodstown Nj | 4 cfs | → |
| Great Egg Harbor R Nr Sicklerville Nj | 3 cfs | → |
| Maurice River At Norma Nj | 70 cfs | → |
| Great Egg Harbor R Nr Blue Anchor Nj | 16 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Gilman Dam.
Boat launches
- Prosser Lake Reservoir
- Capt Roberts Boating Site
- Lakeshore Boulevard , 89452 Nevada
- Washoe County
- Henness Pass Road, Sierraville
- Meadow Lake Road Nevada County
Campgrounds
Fishing spots
Paddle runs
- Headwaters Se 1/4 Of Sec 10, T18, R15e To Stampede Reservoir
- Headwaters To Trailhead
- Royal Gorge (Soda Springs To Tadpole Creek)
- Tahoe City To River Ranch
- Generation And Giant Gaps (Tadpole To Colfax-Iowa Hill Road)
- Hell Hole Dam To Ellicotts Bridge
More reservoirs
Track Lake Gilman 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 Lake Gilman Dam
Where does the data for Lake Gilman 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 High 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 Lake Gilman Dam.