Clyde Potts Reservoir Dam dam
Clyde Potts Reservoir Dam
Clyde Potts Reservoir Dam, located in Mendham Township, New Jersey, stands tall at 80 feet high and spans 1460 feet in length. Completed in 1932, this Earth-type dam serves a primary purpose of water supply, with a storage capacity of 1500 acre-feet and a surface area of 46 acres. The dam is regulated by the New Jersey Department of Environmental Protection, ensuring its compliance with state permitting, inspection, and enforcement requirements.
The reservoir, situated on Harmony Brook, plays a crucial role in maintaining water resources for the local community in Morris County. With a maximum discharge capability of 6700 cubic feet per second, the dam provides flood control measures while also supporting irrigation and municipal water supply needs. Despite being classified as having a high hazard potential, the dam's condition is currently assessed as fair, with regular inspections conducted to monitor its structural integrity.
Managed by the local government, Clyde Potts Reservoir Dam serves as a vital infrastructure piece in safeguarding water resources and addressing climate-related challenges in the region. As water resource and climate enthusiasts, monitoring and supporting the maintenance and upkeep of such critical infrastructure are essential in ensuring the sustainability and resilience of water systems in the face of changing environmental 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 Clyde Potts Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Whippany River Near Morristown Nj | 8 cfs | → |
| Whippany River At Morristown Nj | 24 cfs | → |
| North Branch Raritan River Near Far Hills Nj | 25 cfs | → |
| Sb Raritan River At Four Bridges Nj | 16 cfs | → |
| Musconetcong River At Outlet Of Lake Hopatcong Nj | 14 cfs | → |
| Passaic River Near Millington Nj | 15 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Clyde Potts Reservoir Dam.
Boat launches
- Dell Avenue 9, Netcong
- Jefferson Lake Road Sussex County
- South Main Street Bound Brook
- Island Avenue Little Falls
- North Corporate Drive 2, Riverdale
- Highlands Trail Union
Track Clyde Potts Reservoir 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 Clyde Potts Reservoir Dam
Where does the data for Clyde Potts Reservoir 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 Clyde Potts Reservoir Dam.