Dam Report

Lake Weil Dam dam

New York, USA Tr-Tenmile 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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Lake Weil Dam -- None dam
Lake Weil Dam None · Tr-Tenmile River
About this dam

Lake Weil Dam

Lake Weil Dam, located in Dogtail Corners, New York, is a private concrete dam completed in 1940 for recreational purposes. With a height of 14 feet and a length of 100 feet, the dam holds a maximum storage capacity of 185 acre-feet and a normal storage of 130 acre-feet. The dam, situated on the TR-Tenmile River, has a controlled spillway with a width of 10 feet and a maximum discharge capacity of 240 cubic feet per second.

Managed by the NYS DEC, Lake Weil Dam poses a significant hazard potential and is categorized as having a very high risk level. Although the condition assessment is not rated, the dam undergoes regular inspections with a frequency of four times a year. Despite lacking specific risk management measures and emergency action plans, the dam remains a focal point for water resource and climate enthusiasts due to its historical significance and impact on the local environment.

Lake Weil Dam stands as a testament to New York's commitment to balancing recreational needs with water resource management. As a key feature in Dutchess County's landscape, the dam serves as a reminder of the importance of maintaining and monitoring infrastructure to mitigate potential risks and ensure the safety of surrounding communities and the environment.

StateNone
River / streamTr-Tenmile River
NID IDNY01206
Owner typePrivate
Primary purposeRecreation
Dam typeConcrete
Year built1940
Dam height14 ft
Dam length100 ft
Max storage185 AF
Normal storage130 AF
Surface area31.0 ac
Hazard potentialSignificant
ConditionNot Rated
Last inspectionTue, 24 Nov 2020 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 Lake Weil Dam -- inflows here typically show up in storage 24-72 hours later.

Track Lake Weil 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 Lake Weil Dam

Where does the data for Lake Weil 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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