New Jersey No Name # 40 Dam dam
New Jersey No Name # 40 Dam
New Jersey No Name #40 Dam is a state-owned structure located in Bloomingdale, New Jersey, specifically in West Milford Township. This Earth type dam serves primarily for recreational purposes, with a height of 15 feet and a length of 190 feet. It has a storage capacity of 226 acre-feet and covers a surface area of 23 acres, with a drainage area of 0.47 square miles. The dam's primary purpose is to provide recreational opportunities while also serving as a water resource in the region.
Despite its fair condition assessment and high hazard potential, New Jersey No Name #40 Dam is regularly inspected by state authorities, with the last inspection conducted in August 2020. The dam is regulated, permitted, and inspected by the New Jersey Department of Environmental Protection (NJDEP), ensuring its compliance with safety and environmental standards. With a maximum discharge capacity of 1850 cubic feet per second, the dam plays a crucial role in managing water flow in the Post Brook-TR stream.
As a vital structure in the region's water resource management, New Jersey No Name #40 Dam provides both recreational and functional benefits to the community. Its strategic location in Passaic County, New Jersey, highlights its significance in maintaining water quality, flow control, and recreational activities in the area. Despite its age, the dam continues to serve its intended purposes while adhering to strict regulatory guidelines to ensure public safety and environmental protection.
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 New Jersey No Name # 40 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| West Brook Near Wanaque Nj | 7 cfs | → |
| Pequannock R At Macopin Intake Dam Nj | 14 cfs | → |
| Wanaque R At Wanaque Nj | 14 cfs | → |
| Pequannock River At Riverdale Nj | 29 cfs | → |
| Ramapo River At Pompton Lakes Nj | 122 cfs | → |
| Ringwood Creek Near Wanaque Nj | 8 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near New Jersey No Name # 40 Dam.
Boat launches
- Lakeside Avenue Pompton Lakes
- North Corporate Drive 2, Riverdale
- Greenwood Lake Turnpike Ringwood
- Ringwood-Ramapo Trail Ringwood
- Blue Lake Road Town Of Warwick
- Laurel Meadow Drive Town Of Warwick
Track New Jersey No Name # 40 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 New Jersey No Name # 40 Dam
Where does the data for New Jersey No Name # 40 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 New Jersey No Name # 40 Dam.