Dam Report

Clinton Mills Dam dam

New Jersey, USA South Branch Of Raritan River Hazard Significant
Today high
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Tonight low
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Dam height
14ft
Hazard rating
Significant
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Clinton Mills Dam -- None dam
Clinton Mills Dam None · South Branch Of Raritan River
About this dam

Clinton Mills Dam

Clinton Mills Dam, located in Clinton, New Jersey, is a private earth dam constructed in 1951 along the South Branch of Raritan River. With a height of 13.8 feet and a length of 218 feet, the dam primarily serves recreational purposes, providing a surface area of 10 acres for water-based activities. Managed by the New Jersey Department of Environmental Protection (NJDEP), the dam is state-regulated and undergoes regular inspections to ensure its structural integrity and safety.

The dam's significant hazard potential is mitigated by its satisfactory condition assessment, last updated in April 2021. Despite the absence of spillways or outlet gates, Clinton Mills Dam has a normal storage capacity of 21 acre-feet and a drainage area of 111 square miles. The dam's location in Hunterdon County, within Congressional District 07 of New Jersey, adds to its importance as a water resource management infrastructure for the local community. Additionally, the dam's emergency action plan (EAP) was last revised in December 2010, highlighting the emphasis on preparedness and risk management in case of unforeseen events.

With Congressman Tom Malinowski representing the area, Clinton Mills Dam stands as a vital component of the water management system in the region, providing both recreational opportunities and flood control measures. As climate change continues to impact water resources, the maintenance and regular inspection of dams like Clinton Mills are crucial to ensure the safety of communities downstream and the preservation of the surrounding ecosystem. The dam's role in managing water flow and mitigating potential risks underscores its significance in maintaining a balance between human activities and environmental conservation in the face of a changing climate.

StateNone
River / streamSouth Branch Of Raritan River
NID IDNJ00122
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1951
Dam height14 ft
Dam length218 ft
Normal storage21 AF
Surface area10.0 ac
Drainage area111.0 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionWed, 07 Apr 2021 12:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Clinton Mills Dam -- inflows here typically show up in storage 24-72 hours later.

Track Clinton Mills 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.

FAQ

About Clinton Mills Dam

Where does the data for Clinton Mills 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.