Dam Report

Sixth Lake Dam dam

New York, USA Middle Branch Moose River Hazard High
Today high
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Tonight low
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Dam height
16ft
Hazard rating
High
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Sixth Lake Dam -- None dam
Sixth Lake Dam None · Middle Branch Moose River
About this dam

Sixth Lake Dam

Sixth Lake Dam, located in Inlet, New York, is a state-regulated earth dam completed in 1920 primarily for recreation purposes. With a height of 16 feet and a length of 335 feet, it has a storage capacity of 10,500 acre-feet and serves as a vital hub for water-based activities in the region. The dam, situated on the Middle Branch Moose River, has a controlled spillway with a width of 25 feet, ensuring proper water flow management.

Despite its fair condition assessment in 2016, Sixth Lake Dam poses a high hazard potential due to its age and the surrounding environmental factors. The dam's high risk assessment status signifies the need for regular inspections and maintenance to prevent potential failures and ensure the safety of the local community. With a very high risk rating of 1, stakeholders must prioritize risk management measures and emergency preparedness to mitigate any potential disasters effectively.

For water resource and climate enthusiasts, Sixth Lake Dam stands as a significant infrastructure piece within Hamilton County, offering both recreational opportunities and a critical water management function. As it continues to play a pivotal role in the region's water ecosystem, stakeholders must remain vigilant in monitoring its condition and implementing necessary measures to safeguard its integrity and the surrounding environment.

StateNone
River / streamMiddle Branch Moose River
NID IDNY00318
Owner typeState
Primary purposeRecreation
Dam typeEarth
Year built1920
Dam height16 ft
Dam length335 ft
Max storage10,500 AF
Normal storage6,657 AF
Surface area732.0 ac
Drainage area17.1 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionFri, 02 Nov 2018 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 Sixth Lake Dam -- inflows here typically show up in storage 24-72 hours later.

Track Sixth 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 Sixth Lake Dam

Where does the data for Sixth 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 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.

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