Hidden Valley Lake Dam dam
Hidden Valley Lake Dam
Hidden Valley Lake Dam, located in Vernon Township, Sussex County, New Jersey, is a privately owned earth dam standing at a height of 10 feet and stretching 75 feet in length. The dam is situated on the Pachuck Creek-TR and is regulated by the New Jersey Department of Environmental Protection (NJDEP). With a surface area of 12 acres and a drainage area of 0.28 square miles, Hidden Valley Lake Dam plays a crucial role in managing water resources in the region.
Despite its important function, Hidden Valley Lake Dam poses a high hazard potential due to its poor condition, as assessed during the last inspection in November 2019. This raises concerns about the dam's ability to withstand potential emergencies and underscores the need for regular maintenance and improvements. With an inspection frequency of every two years, it is crucial for stakeholders to prioritize the dam's safety and implement necessary risk management measures to ensure the surrounding communities are protected from any potential risks associated with the dam.
As an essential infrastructure for water resource management, Hidden Valley Lake Dam requires ongoing attention and investment to enhance its safety and functionality. With its location in a high-risk area and the potential impact on the surrounding environment and communities, it is imperative for all relevant authorities and stakeholders to work together to address the dam's current condition and ensure it meets the required safety standards. By prioritizing the maintenance and risk assessment of Hidden Valley Lake Dam, we can mitigate potential hazards and safeguard the region's water resources for future generations.
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 Hidden Valley Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wanaque River At Awosting Nj | 12 cfs | → |
| West Brook Near Wanaque Nj | 7 cfs | → |
| Pequannock R At Macopin Intake Dam Nj | 14 cfs | → |
| Ringwood Creek Near Wanaque Nj | 8 cfs | → |
| Eb Paulins Kill Near Lafayette Nj | 11 cfs | → |
| Wanaque R At Wanaque Nj | 14 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hidden Valley Lake Dam.
Boat launches
- Winding Waters Trail Town Of Warwick
- Greenwood Lake Turnpike Ringwood
- Blue Lake Road Town Of Warwick
- Laurel Meadow Drive Town Of Warwick
- Ringwood-Ramapo Trail Ringwood
- Lakeside Avenue Pompton Lakes
Track Hidden Valley 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 Hidden Valley Lake Dam
Where does the data for Hidden Valley 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 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 Hidden Valley Lake Dam.