Ogdensburg dam
Ogdensburg
Located in St. Lawrence County, New York, Ogdensburg is home to a significant hydroelectric dam on the Oswegatchie River. Built in 1910, this gravity dam stands at 12 feet high and stretches over 504.4 feet in length. With a storage capacity of 1450 acre-feet and a drainage area of 1592 square miles, the dam plays a crucial role in water resource management and energy production in the region.
Managed by the Federal Energy Regulatory Commission, the dam features an uncontrolled spillway with a width of 349 feet and three slide gates for water release. Despite its high hazard potential, the dam's risk assessment is rated as moderate, indicating a need for ongoing monitoring and risk management measures. While the current condition assessment is not available, regular inspections are conducted to ensure the dam's structural integrity and safety.
Local climate and water resource enthusiasts in Ogdensburg have a keen interest in the hydroelectric dam's operations and its impact on the surrounding environment. The presence of this historic structure not only provides renewable energy but also serves as a vital component of the region's water infrastructure. As the dam continues to play a crucial role in water management and energy production, stakeholders remain vigilant in ensuring its safe and efficient operation for the benefit of the community and the environment.
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 Ogdensburg -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Oswegatchie River Near Heuvelton Ny | 2,030 cfs | → |
| Grass River At Chase Mills Ny | 992 cfs | → |
| Raquette River At Raymondville Ny | 2,050 cfs | → |
| Raquette River At South Colton Ny | 1,050 cfs | → |
| West Branch Oswegatchie R Nr Harrisville Ny | 633 cfs | → |
| St. Regis River At Brasher Center Ny | 1,150 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Ogdensburg .
Boat launches
- Maple City Trail Ogdensburg
- Patterson Street Boat Launch
- Corrine Street Prescott
- Dundas Street Cardinal
- Brock Trail Brockville
- Jacques Cartier State Park Saint Lawrence County
Campgrounds
- Eel Weir State Park
- Jacques Cartier State Park
- Iroquois Municipal Campground
- Coles Creek State Park
- Riverside/Cedar - St. Lawrence
- West - Rideau River Provincial Park
More reservoirs
Track Ogdensburg 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 Ogdensburg
Where does the data for Ogdensburg 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 Ogdensburg .