Lake Mansfield dam
Lake Mansfield
Lake Mansfield, located in Stowe, Vermont, is a private recreational lake with a primary purpose of providing leisure activities for water enthusiasts. The earth dam that creates the lake stands at a height of 32 feet and has a length of 375 feet, with a storage capacity of 515 acre-feet. The dam was completed in 1900 and is regulated by the Vermont Department of Environmental Conservation.
With a surface area of 38 acres and a drainage area of 2.48 square miles, Lake Mansfield is fed by Miller Brook and serves as a popular spot for boating, fishing, and swimming. Despite being assessed as having a fair condition, the dam has a high hazard potential, highlighting the importance of regular inspections and maintenance to ensure the safety of the surrounding community. The last inspection took place in June 2017, with a frequency of once a year.
Climate and water resource enthusiasts can appreciate Lake Mansfield not only for its recreational opportunities but also for its role in water management and regulation in the region. The dam's presence ensures a reliable water supply for the area while also posing challenges that need to be addressed to mitigate potential risks. As climate change continues to impact water resources, the management of structures like Lake Mansfield will be crucial in adapting to shifting environmental conditions and safeguarding communities against potential hazards.
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 Lake Mansfield -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| W Branch Little R Abv Bingham Falls Near Stowe | 18 cfs | → |
| Little River Near Waterbury | 564 cfs | → |
| Lamoille River At Johnson | 641 cfs | → |
| Mad River Near Moretown | 247 cfs | → |
| Winooski River Near Essex Junction | 2,480 cfs | → |
| North Branch Winooski River At Wrightsville | 166 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Mansfield.
Boat launches
- Little River Road 417, Waterbury
- Blush Hill Road 2698, Waterbury
- Warren And Ruth Beeken Rivershore Trail Richmond
- State Route 100b Moretown
- Vt Route 15 E Morristown
- Indian Brook Loop Trail Essex
Campgrounds
- Twin Brooks Tenting Area
- Underhill State Park
- Primitive Campsite #21
- Primitive Campsite #22
- B Area
- Smugglers Notch State Park
Paddle runs
- Headwaters To Folsom Brook
- Proclamation Boundary To Proclamation Boundary
- Confluence With Alder Creek To Confluence With Middlebury River
- Headwaters To End Of Fs Road 243
- End Of Fs Road 243 To Neshobe River
- Source Above Fr 55 To Proclamation Boundary (Stony Brook)
More reservoirs
Track Lake Mansfield 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 Lake Mansfield
Where does the data for Lake Mansfield 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Lake Mansfield.