Bristol Reservoir #1 Dam Dam
Bristol Reservoir #1 Dam
Bristol Reservoir #1 Dam, located in Hartford, Connecticut, was completed in 1885 and serves as a crucial water supply source for the region. This earth dam stands at a height of 25 feet and stretches 250 feet in length, providing a storage capacity of 348 acre-feet. Situated on a tributary to the Pequabuck River, the dam plays a significant role in managing water resources and ensuring a stable water supply for the surrounding area.
With a surface area of 33 acres and a drainage area of 0.43 square miles, Bristol Reservoir #1 Dam has a high hazard potential but is currently assessed to be in satisfactory condition. Regular inspections are conducted, with the last assessment occurring in October 2019. The dam is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP) and is equipped with spillway width of 12 feet to manage maximum discharge of 200 cubic feet per second. The dam's emergency action plan ensures preparedness for any potential risks or incidents.
As a critical infrastructure for water resource management, Bristol Reservoir #1 Dam serves as a testament to the importance of maintaining and regulating dams to ensure the safety and sustainability of water supplies in the region. With its historical significance and vital role in water supply, the dam stands as a key component in safeguarding water resources and addressing the challenges posed by climate change and growing water demands.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Bristol Reservoir #1 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Naugatuck River At Thomaston | 32 cfs | → |
| Quinnipiac River At Southington | 19 cfs | → |
| Farmington River At Unionville | 156 cfs | → |
| Burlington Brook Near Burlington | 2 cfs | → |
| Nonewaug River At Minortown | 28 cfs | → |
| Weekeepeemee River At Hotchkissville | 27 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Bristol Reservoir #1 Dam.
Boat launches
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Campgrounds
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Fishing spots
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River runs
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About Bristol Reservoir #1 Dam
Where does the data for Bristol Reservoir #1 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 below 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.
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.