Dalrymple Pond Dam dam
Dalrymple Pond Dam
Dalrymple Pond Dam, located in Denville, New Jersey, is a local government-owned structure that serves as a crucial resource for irrigation purposes on the Mill Brook. With a height of 16 feet and a length of 660 feet, this earth dam provides flood risk reduction and irrigation benefits to the surrounding area. The dam has a storage capacity of 73 acre-feet, with a normal storage level of 24 acre-feet, covering a surface area of 7 acres and draining a 0.6 square mile watershed.
This dam, completed in an undisclosed year, is regulated by the New Jersey Department of Environmental Protection (NJDEP), ensuring proper inspection, enforcement, and permitting protocols are followed. Despite its fair condition assessment in 2016, the dam poses a low hazard potential. The last inspection date was in July 2016, with a recommended inspection frequency of every 4 years. With a congressman representing the area in Congressional District 11, New Jersey, Dalrymple Pond Dam remains a vital piece of infrastructure for water resource management and climate resilience in the region.
As climate change continues to impact water resources, Dalrymple Pond Dam plays a crucial role in managing water levels and reducing flood risks in the Morris County area. With its low hazard potential and fair condition assessment, ongoing inspections and maintenance will be essential to ensure the dam's continued effectiveness in providing irrigation and flood risk reduction benefits to the community. As enthusiasts of water resources and climate resilience, it is important to monitor and support the proper management of structures like Dalrymple Pond Dam to safeguard against potential hazards and maintain 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 Dalrymple Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Whippany River Near Morristown Nj | 8 cfs | → |
| Musconetcong River At Outlet Of Lake Hopatcong Nj | 14 cfs | → |
| Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj | 2 cfs | → |
| Whippany River At Morristown Nj | 24 cfs | → |
| Green Pond Brook At Picatinny Arsenal Nj | 2 cfs | → |
| Sb Raritan River At Four Bridges Nj | 16 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dalrymple Pond Dam.
Boat launches
- Dell Avenue 9, Netcong
- Jefferson Lake Road Sussex County
- North Corporate Drive 2, Riverdale
- Island Avenue Little Falls
- Lakeside Avenue Pompton Lakes
- West Shore Drive Stillwater Township
Track Dalrymple Pond 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 Dalrymple Pond Dam
Where does the data for Dalrymple Pond 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 Low 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 Dalrymple Pond Dam.