Dam Report

West Fork Pond Dam dam

Connecticut, USA Horseneck Brook Tr Hazard Significant
Today high
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Tonight low
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Dam height
4ft
Hazard rating
Significant
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West Fork Pond Dam -- None dam
West Fork Pond Dam None · Horseneck Brook Tr
About this dam

West Fork Pond Dam

West Fork Pond Dam, located in Greenwich, Connecticut, was completed in 1940 for the primary purpose of recreation. This private-owned earth dam stands at a height of 4 feet and spans 300 feet in length, with a storage capacity of 52 acre-feet. Situated on the Horseneck Brook tributary, the dam serves as a vital water resource in the area, with a drainage area of 2.4 square miles and a maximum discharge capacity of 110 cubic feet per second. Despite its recreational significance, the dam is currently assessed to be in poor condition, with a significant hazard potential.

The dam's poor condition has raised concerns among water resource and climate enthusiasts, prompting the need for regular inspections and maintenance. The last inspection was conducted in March 1994, with an inspection frequency of 7 years. With a spillway width of 20 feet and a surface area of 15 acres, the dam poses a risk of failure that could lead to potential inundation in the surrounding area. The lack of an Emergency Action Plan and updated risk assessment further highlights the importance of ensuring the safety and integrity of West Fork Pond Dam to protect the local community and environment.

As efforts to address the dam's condition continue, stakeholders are urged to prioritize risk management measures and emergency preparedness to mitigate potential hazards. With its historical significance and recreational value, West Fork Pond Dam serves as a reminder of the importance of sustainable water resource management and climate resilience in safeguarding infrastructure and communities against the impacts of climate change. Collaboration between regulatory agencies, private owners, and the local community will be essential in ensuring the long-term safety and sustainability of this critical water resource in Fairfield County, Connecticut.

StateNone
River / streamHorseneck Brook Tr
NID IDCT01706
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1940
Dam height4 ft
Dam length300 ft
Max storage52 AF
Normal storage52 AF
Surface area15.0 ac
Drainage area2.4 sq mi
Hazard potentialSignificant
ConditionPoor
Last inspectionMon, 14 Mar 1994 00:00:00 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 West Fork Pond Dam -- inflows here typically show up in storage 24-72 hours later.

Track West Fork Pond 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 West Fork Pond Dam

Where does the data for West Fork Pond 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.

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