Warren Mill Dam dam
Warren Mill Dam
Warren Mill Dam, located in Pohatcong, New Jersey, along the Musconetcong River, is a historic structure completed in 1916 primarily for water supply purposes. This Earth-type dam stands at 37.5 feet tall and stretches 330 feet in length, with a normal storage capacity of 28 acre-feet. Despite its age, the dam continues to play a crucial role in managing water resources in the region, serving as a key component for ensuring water availability in the area.
The dam's high hazard potential and poor condition assessment highlight the need for regular inspections and maintenance to ensure its continued safety and effectiveness. Managed by private owners, Warren Mill Dam falls under New Jersey Department of Environmental Protection's regulatory jurisdiction, with state permitting, inspection, and enforcement in place. The dam's association with the Musconetcong River and its significant storage capacity underscore its importance in water resource management and flood control efforts in the region.
With ongoing challenges related to its condition and hazard potential, Warren Mill Dam serves as a reminder of the importance of proactive maintenance and monitoring for aging infrastructure. As climate change impacts water resources and infrastructure resilience, the preservation and modernization of structures like Warren Mill Dam become increasingly crucial for sustainable water management and climate adaptation efforts in New Jersey's Hunterdon County.
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 Warren Mill Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Musconetcong River Near Bloomsbury Nj | 82 cfs | → |
| Lehigh River At Glendon | 1,500 cfs | → |
| Mulhockaway Creek At Van Syckel Nj | 8 cfs | → |
| Spruce Run At Clinton Nj | 15 cfs | → |
| Bushkill Creek Ab Rt 33 Bridge At Tatamy | 79 cfs | → |
| South Branch Raritan River Near High Bridge Nj | 43 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Warren Mill Dam.
Track Warren Mill 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 Warren Mill Dam
Where does the data for Warren Mill 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 Warren Mill Dam.