Liberty Lake Dam dam
Liberty Lake Dam
Located in Liberty Township, New Jersey, the Liberty Lake Dam is a vital structure owned by the local government to manage flood risk along the Mountain Lake Brook. With a height of 23 feet and a length of 680 feet, this earth dam plays a crucial role in flood risk reduction in Warren County. The dam has a storage capacity of 43 acre-feet and a maximum discharge of 86 cubic feet per second, serving as a key component in safeguarding the surrounding area from potential inundation.
Despite its importance, the Liberty Lake Dam is currently categorized as having a significant hazard potential and poor condition, as per the latest assessment conducted in November 2020. The dam is regulated by the New Jersey Department of Environmental Protection and undergoes regular inspections to ensure its structural integrity and functionality. While there are no associated structures or modifications documented, the dam's emergency action plan was last revised in August 2021, emphasizing the ongoing efforts to enhance emergency preparedness and risk management measures for this critical infrastructure.
With its strategic location and essential role in flood risk reduction, the Liberty Lake Dam stands as a testament to the proactive measures taken by local authorities to safeguard communities against potential water-related disasters. As water resource and climate enthusiasts continue to monitor and advocate for sustainable practices, the maintenance and upkeep of dams like Liberty Lake become paramount in ensuring the safety and resilience of surrounding areas 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 Liberty Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Pequest River At Pequest Nj | 49 cfs | → |
| Beaver Brook Near Belvidere Nj | 14 cfs | → |
| Paulins Kill At Blairstown Nj | 44 cfs | → |
| Delaware River At Belvidere Nj | 4,150 cfs | → |
| Yards Creek Near Blairstown Nj | 1 cfs | → |
| Pequest River At Huntsville Nj | 10 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Liberty Lake Dam.
Boat launches
- Front Street Belvidere
- Pp&Amp;L
- Martins Creek Access Area
- Kittatinny Access Area
- Poxono Access Area In Nj
- East Bangor Lake
Track Liberty 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 Liberty Lake Dam
Where does the data for Liberty 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 Liberty Lake Dam.