Dam Report

Little Tracys Pond Dam dam

Connecticut, USA Long Swamp Brook Hazard Significant
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Tonight low
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Dam height
14ft
Hazard rating
Significant
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Little Tracys Pond Dam -- None dam
Little Tracys Pond Dam None · Long Swamp Brook
About this dam

Little Tracys Pond Dam

Little Tracys Pond Dam, located in Middlebury, Connecticut, serves as a vital water supply source for the area. The earth dam has a height of 14 feet and a length of 434 feet, creating a surface area of 3 acres and holding back water from Long Swamp Brook. Classified as a significant hazard potential, the dam is under state regulation and inspection by the Connecticut Department of Energy and Environmental Protection (DEEP) to ensure its safety and maintenance.

Despite being in fair condition as of the last assessment in September 2019, with a moderate risk rating, the dam has an uncontrolled spillway type with a width of 20 feet. The inspection frequency is set at 5 years, indicating regular monitoring to address any potential issues that may arise. With the dam primarily serving as a water supply resource, it plays a crucial role in providing water to the surrounding community, highlighting its importance in the local ecosystem and climate resilience efforts.

As a private-owned structure, Little Tracys Pond Dam represents a key infrastructure component in New Haven County, Connecticut. With its historical significance and essential function in water supply management, the dam stands as a testament to human-engineered solutions for sustaining water resources in the face of changing climate conditions. Its presence underscores the importance of maintaining and regulating such structures to ensure the safety and security of water supplies for both present and future generations of residents and wildlife in the region.

StateNone
River / streamLong Swamp Brook
NID IDCT01052
Owner typePrivate
Primary purposeWater Supply
Dam height14 ft
Dam length434 ft
Surface area3.0 ac
Drainage area0.7 sq mi
Hazard potentialSignificant
ConditionFair
Last inspectionThu, 05 Sep 2019 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 Little Tracys Pond Dam -- inflows here typically show up in storage 24-72 hours later.

Track Little Tracys Pond Dam in the Snoflo app

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FAQ

About Little Tracys Pond Dam

Where does the data for Little Tracys 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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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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