Lewiston Reservoir Dike dam
Lewiston Reservoir Dike
The Lewiston Reservoir Dike, located in Lewiston, New York, is a key structure with a primary purpose of hydroelectric power generation. Constructed in 1963, this earth dam stands at a height of 65 feet and has a structural height of 84 feet. With a hydraulic height of 119 feet, the dam plays a crucial role in regulating the flow of the Niagara River.
Managed by the Federal Energy Regulatory Commission, this high-hazard potential structure is inspected regularly to ensure its safety and integrity. Despite its age, the Lewiston Reservoir Dike continues to serve its purpose effectively, with a storage capacity of 76,000 acre-feet. With its impressive dimensions and strategic location, this dam is a testament to the ingenuity of its designers and the importance of sustainable water resource management in the face of climate change.
Water resource and climate enthusiasts will appreciate the role of the Lewiston Reservoir Dike in harnessing the power of water for energy production while also safeguarding the surrounding environment. As a vital component of the region's infrastructure, this dam exemplifies the intersection of technology, engineering, and environmental stewardship in the quest for a more sustainable future. Its continued operation and maintenance are essential for ensuring the resilience of the local ecosystem and the reliability of the hydroelectric power supply in the face of changing climatic conditions.
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 Lewiston Reservoir Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Ellicott Creek Below Williamsville Ny | 142 cfs | → |
| Tonawanda Creek At Rapids Ny | 350 cfs | → |
| Buffalo Creek At Gardenville Ny | 125 cfs | → |
| Cazenovia Creek At Ebenezer Ny | 210 cfs | → |
| Cayuga Creek Nr Lancaster Ny | 69 cfs | → |
| Tonawanda Creek At Attica Ny | 92 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lewiston Reservoir Dike .
Track Lewiston Reservoir Dike 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 Lewiston Reservoir Dike
Where does the data for Lewiston Reservoir Dike 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 Lewiston Reservoir Dike .