Blue Mt Lake Dam dam
Blue Mt Lake Dam
Blue Mt Lake Dam, located in Millbrook Village, New Jersey, is a federally owned structure managed by the National Park Service. Built in 1963 by the USDA NRCS, this earth dam stands at a height of 26 feet and spans 500 feet across Vancampens Brook. The primary purpose of Blue Mt Lake Dam is for recreation, including fish and wildlife pond activities.
With a normal storage capacity of 96 acre-feet and a maximum discharge rate of 4575 cubic feet per second, the dam poses a low hazard potential and is classified as having a moderate risk level. The spillway, measuring 185 feet wide, is uncontrolled and the dam features uncontrolled outlet gates. While the condition assessment is not available, the dam undergoes inspections every 5 years by the National Park Service.
Blue Mt Lake Dam plays a crucial role in providing recreational opportunities and maintaining the ecological balance of the surrounding area. Water resource and climate enthusiasts can appreciate the engineering behind this vital structure, which serves as a testament to responsible water management practices in New Jersey's Sussex 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 Blue Mt Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Flat Brook Near Flatbrookville Nj | 53 cfs | → |
| Bush Kill At Shoemakers | 148 cfs | → |
| Paulins Kill At Blairstown Nj | 64 cfs | → |
| Yards Creek Near Blairstown Nj | 2 cfs | → |
| Little Bush Kill At Edgemere | 11 cfs | → |
| Pequest River At Huntsville Nj | 14 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Blue Mt Lake Dam.
Boat launches
- Mcdade Recreational Trail Delaware
- West Shore Drive Stillwater Township
- Poxono Access Area In Nj
- Lake Minisink
- Little Mud Pond
- Kittatinny Access Area
Track Blue Mt 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 Blue Mt Lake Dam
Where does the data for Blue Mt 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 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 Blue Mt Lake Dam.