High Falls - Dike No. 2 dam
High Falls - Dike No. 2
High Falls - Dike No. 2, located in Croghan, New York, is a privately owned earth dam that serves the primary purpose of hydroelectric power generation on the Beaver River. Built in 1925, this multi-arch dam stands at a height of 10 feet and has a length of 270 feet, with a storage capacity of 1058 acre-feet. Despite being regulated by the Federal Energy Regulatory Commission, the dam has a low hazard potential and is classified as having a high risk level.
While the dam does not have a spillway, it is equipped with outlet gates and is inspected by the Federal Energy Regulatory Commission every three years. With a drainage area of 267 square miles and a surface area of 145 acres, High Falls - Dike No. 2 plays a crucial role in the local water resource management system. Although its condition assessment is currently not available, the dam's risk level is closely monitored to ensure the safety of the surrounding area.
For water resource and climate enthusiasts, High Falls - Dike No. 2 represents a fascinating intersection of historical infrastructure, hydroelectric power generation, and environmental risk management. As a key component of the Beaver River watershed, this dam showcases the delicate balance between harnessing water resources for energy production and safeguarding against potential hazards. Its location in Lewis County, New York, underlines the importance of sustainable water management practices in mitigating the impacts of climate change on our infrastructure and communities.
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 - Dike No. 2 -- 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 - Dike No. 2 .
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 - Dike No. 2 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 - Dike No. 2
Where does the data for High Falls - Dike No. 2 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 Low 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 - Dike No. 2 .