High Falls dam
High Falls
High Falls is a privately-owned hydroelectric dam located in Croghan, New York, along the Beaver River. Built in 1925, this concrete gravity dam stands at a height of 50 feet and has a length of 1233 feet, with a storage capacity of 1058 acre-feet. The dam's primary purpose is hydroelectric power generation, with a maximum discharge of 6600 cubic feet per second.
Managed by the Federal Energy Regulatory Commission, High Falls poses a high hazard potential due to its uncontrolled spillway and its location in an area with a moderate risk assessment. The dam is inspected by the federal agency and has emergency action plans in place. Despite its age, the condition assessment of High Falls is not available, indicating a need for further evaluation to ensure its structural integrity and safety for the surrounding community.
Enthusiasts of water resources and climate will find High Falls an intriguing structure with a rich history in renewable energy production. Its location in Lewis County, New York, offers a picturesque setting for those interested in exploring the intersection of water management, energy generation, and environmental sustainability.
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 High Falls -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Beaver River At Croghan Ny | 893 cfs | → |
| Independence River At Donnattsburg Ny | 219 cfs | → |
| West Branch Oswegatchie R Nr Harrisville Ny | 633 cfs | → |
| Oswegatchie River Near Oswegatchie Ny | 832 cfs | → |
| Black River At Watertown Ny | 4,300 cfs | → |
| Black River Near Boonville Ny | 964 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near High Falls .
Boat launches
Campgrounds
- Whetstone Gulf State Park
- Remington Park Rv Military - Fort Drum
- Oswegatchie 41/High Rock
- Oswegatchie 42
- Oswegatchie 43
- Oswegatchie 44
Track High Falls 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 High Falls
Where does the data for High Falls 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 High Falls .