Hallville Pond Dam dam
Hallville Pond Dam
Hallville Pond Dam, located in Preston, Connecticut, is a privately owned earth dam completed in 1920 for the primary purpose of recreation. Standing at a height of 12.5 feet and with a length of 220 feet, the dam impounds Halls Brook Tributary to create Hallville Pond, offering an idyllic spot for water resource and climate enthusiasts to enjoy outdoor activities. With a normal storage capacity of 72 acre-feet and a surface area of 11.9 acres, the dam provides a serene environment for recreation in New London County.
Despite its recreational benefits, Hallville Pond Dam has been classified as having a significant hazard potential, although its condition assessment remains unrated. The dam is regulated by the Connecticut Department of Energy and Environmental Protection (DEEP), with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations. The dam's emergency action plan status and risk assessment measures are currently not available, highlighting the need for ongoing monitoring and management of this essential water resource infrastructure.
For water resource and climate enthusiasts seeking a picturesque retreat in Connecticut, Hallville Pond Dam offers a tranquil setting for outdoor recreation and appreciation of nature. As a privately owned dam with a rich history dating back to the early 20th century, it serves as a reminder of the importance of sustainable water management practices and the need for regular inspections and maintenance to ensure public safety and environmental protection. Whether fishing, boating, or simply enjoying the scenic beauty of the pond, visitors to Hallville Pond can experience the harmony between human and natural systems in a unique and peaceful setting.
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.
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 Hallville Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Shetucket River At Taftville | 755 cfs | → |
| Yantic River At Yantic | 87 cfs | → |
| Quinebaug River At Jewett City | 918 cfs | → |
| Pendleton Hill Brook Near Clarks Falls | 4 cfs | → |
| Little River Near Hanover | 34 cfs | → |
| Pawcatuck River At Westerly | 302 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Hallville Pond Dam.
Boat launches
- Amos Lake
- Long Pond
- Wyassup Lake
- Glasgo Pond State Boat Launch
- Jeffrey Lane Griswold
- Thames River Boat Launch
Campgrounds
Fishing spots
Paddle runs
- Begins Below The Tailrace Of The Rainbow Dam To The Confluence With The Connecticut River
- The Confluence Of The East And West Branches To The Confluence With The Farmington River In East Granby
- Begins Below The Tailrace Of The Lower Collinsville Dam To The Route 187 Bridge
- The Confluence With The Nepaug River To A Point 0.2 Miles Below The Lower Collinsville Dam Tailrace
- New Hartford/Canton Town Line To The Confluence With The Nepaug River
Track Hallville Pond 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.
About Hallville Pond Dam
Where does the data for Hallville 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Hallville Pond Dam.