Dam Report

Bristol Reservoir #3 Dam dam

Connecticut, USA Poland 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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Bristol Reservoir #3 Dam -- None dam
Bristol Reservoir #3 Dam None · Poland River
About this dam

Bristol Reservoir #3 Dam

Bristol Reservoir #3 Dam, located in Plymouth, Connecticut, serves as a crucial water supply resource for the region. This masonry dam stands at a height of 14 feet and has a length of 240 feet, creating a reservoir with a surface area of 4.1 acres and a drainage area of 5.74 acres. The dam is primarily regulated by the Connecticut Department of Energy and Environmental Protection (DEEP) and is classified as having a significant hazard potential and poor condition assessment.

Despite its age and condition, Bristol Reservoir #3 Dam plays a vital role in ensuring water security for the local community. The dam's emergency action plan was last revised in August 2017, indicating efforts to maintain safety protocols in case of any unforeseen events. With its location on the Poland River and its critical function in water supply, the dam serves as a key infrastructure asset that requires ongoing monitoring and maintenance to ensure its continued operational integrity.

As water resource and climate enthusiasts, understanding the complexities of infrastructure like Bristol Reservoir #3 Dam highlights the importance of sustainable water management practices. The dam's significance in providing essential water supply underscores the need for proactive measures to address its poor condition assessment and mitigate potential risks. By staying engaged in the maintenance and regulation of structures like this, we can contribute to the resilience of our water resources in the face of changing climate conditions.

StateNone
River / streamPoland River
NID IDCT01213
Owner typeLocal Government
Primary purposeWater Supply
Dam typeMasonry
Dam height14 ft
Dam length240 ft
Surface area4.1 ac
Drainage area5.7 sq mi
Hazard potentialSignificant
ConditionPoor
Last inspectionFri, 15 May 2015 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 Bristol Reservoir #3 Dam -- inflows here typically show up in storage 24-72 hours later.

Track Bristol Reservoir #3 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 Bristol Reservoir #3 Dam

Where does the data for Bristol Reservoir #3 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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