Rockefeller dam
Rockefeller
Rockefeller, also known as Peggys Pond, is a privately owned dam located in Plymouth, Vermont. Managed by the USDA NRCS, this Earth-type dam serves primarily for recreational purposes and was completed in 1970. With a height of 31 feet and a length of 292 feet, Rockefeller has a storage capacity of 44 acre-feet and covers a surface area of 4 acres.
Despite its significant hazard potential and poor condition assessment, Rockefeller is regulated by the Vermont Department of Environmental Conservation (DEC) and undergoes regular inspections. The dam is equipped with an uncontrolled spillway and is situated on the Woodward Reservoir-TR river or stream. Its risk assessment is moderate, and while there are no associated locks or outlet gates, the dam's maintenance and emergency preparedness are crucial for ensuring public safety and environmental protection.
Located in Windsor County, Vermont, Rockefeller is a vital piece of infrastructure that not only provides recreational opportunities but also requires careful oversight and management to mitigate potential risks associated with its operation. As a focal point for water resource and climate enthusiasts, understanding the complexities of Rockefeller's structure and regulatory framework is essential for safeguarding its functionality and ensuring the well-being of the surrounding community.
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 Rockefeller -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ottauquechee River Near West Bridgewater | 51 cfs | → |
| Otter Creek At Center Rutland | 643 cfs | → |
| Black River At North Springfield | 209 cfs | → |
| White River At West Hartford | 1,260 cfs | → |
| Ottauquechee River At North Hartland | 419 cfs | → |
| Connecticut River At West Lebanon | 7,840 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Rockefeller.
Boat launches
- Vt 100 Plymouth
- Fishing Access Road Ludlow
- Chittenden Dam Access Road Chittenden
- Connecticut River Boat Launch
- Sanders Road Bethel
Campgrounds
- Calvin Coolidge State Park
- Gifford Woods State Park
- Forest Campsite With Stream & Fire Ring
- Silver Lake State Park
- Greendale Campground
- Greendale
Fishing spots
Track Rockefeller 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 Rockefeller
Where does the data for Rockefeller 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 Rockefeller.