East Norfolk dam
East Norfolk
East Norfolk is a privately owned hydroelectric dam located in Norfolk, New York, along the Raquette River. The dam, completed in 1928, stands at 16 feet high and stretches 278 feet in length, with a storage capacity of 360 acre-feet. The dam serves as a gravity structure with a multi-arch core type and sits on a rock foundation, contributing to its structural integrity.
With a drainage area of 1063 square miles and a maximum discharge capacity of 10360 cubic feet per second, East Norfolk plays a crucial role in regulating water flow and providing hydroelectric power to the region. The dam's spillway is uncontrolled and spans 195 feet in width, while its hazard potential is classified as high, with a moderate risk assessment rating of 3.
Although not state-regulated, East Norfolk undergoes regular inspections by the Federal Energy Regulatory Commission, ensuring its operational safety and compliance with guidelines. The dam's location within the St. Lawrence County of New York makes it a key component in managing water resources and mitigating climate-related risks in the area. For water resource and climate enthusiasts, East Norfolk represents a significant infrastructure contributing to sustainable energy production and water management practices in the region.
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 East Norfolk -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Raquette River At Raymondville Ny | 2,050 cfs | → |
| Grass River At Chase Mills Ny | 992 cfs | → |
| St. Regis River At Brasher Center Ny | 1,150 cfs | → |
| W Br St. Regis R Nr Parishville Ny | 362 cfs | → |
| Raquette River At South Colton Ny | 1,050 cfs | → |
| Little Salmon River At Bombay Ny | 114 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near East Norfolk .
Boat launches
- Wilson Hill Causeway Saint Lawrence County
- St Regis River
- Mcginnis Road 398, Saint Lawrence County
- Park Lane Waddington
- Ny 131 Saint Lawrence County
- Lakeshore Drive Morrisburg
Campgrounds
- Coles Creek State Park
- Upper Canada Sanctuary - St. Lawrence
- Riverside/Cedar - St. Lawrence
- Farran Park - St. Lawrence
- Mclaren Campsite - St. Lawrence
- Woodlands Campsite - St. Lawrence
More reservoirs
Track East Norfolk 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 East Norfolk
Where does the data for East Norfolk 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 East Norfolk .