Dam Report

Hatch Lake Dam dam

New York, USA Bradley Brook Hazard Low
Today high
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Tonight low
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Dam height
11ft
Hazard rating
Low
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Hatch Lake Dam -- None dam
Hatch Lake Dam None · Bradley Brook
About this dam

Hatch Lake Dam

Located in Madison, New York, Hatch Lake Dam is a state-regulated structure built in 1836 primarily for recreation purposes. With a height of 11 feet and a length of 40 feet, the dam holds a normal storage capacity of 140 acre-feet and a maximum storage of 175 acre-feet. The dam controls the flow of Bradley Brook and covers a surface area of 134 acres, serving as a popular recreational spot for water resource and climate enthusiasts.

Although rated as having a low hazard potential and not currently assessed for condition, Hatch Lake Dam's risk assessment is categorized as very high. The dam features a controlled spillway with a width of 6 feet and is under the jurisdiction of the New York State Department of Environmental Conservation. While last inspected in 1998, the dam has not been evaluated for risk management measures, emergency action plans, or inundation maps in recent years, highlighting the need for updated assessments and preparedness measures.

Despite its age and limited recent evaluations, Hatch Lake Dam remains a vital structure for water management and recreational activities in the region. As climate change continues to impact water resources, the importance of proper maintenance, risk assessment, and emergency planning for dams like Hatch Lake becomes increasingly crucial to ensure the safety and sustainability of the surrounding environment and communities.

StateNone
River / streamBradley Brook
NID IDNY01497
Owner typeState
Primary purposeRecreation
Dam typeEarth
Year built1836
Dam height11 ft
Dam length40 ft
Max storage175 AF
Normal storage140 AF
Surface area134.0 ac
Drainage area11.5 sq mi
Hazard potentialLow
ConditionNot Rated
Last inspectionTue, 21 Apr 1998 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 Hatch Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Hatch 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.

FAQ

About Hatch Lake Dam

Where does the data for Hatch 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.