Lock E9 Rotterdam Junction dam
Lock E9 Rotterdam Junction
Lock E9 Rotterdam Junction, located in Schenectady, New York, along the Mohawk River (Erie Canal), is a state-owned hydroelectric structure with a primary purpose of generating power and facilitating navigation. Built in 1910, this dam stands at a height of 15 feet and has a length of 530 feet, providing a storage capacity of 6681 acre-feet and covering a surface area of 428 acres within a drainage area of 3248 square miles.
Managed by the New York State Department of Environmental Conservation and regulated by the Federal Energy Regulatory Commission, Lock E9 Rotterdam Junction has a controlled spillway system with a width of 510 feet, ensuring efficient water flow and minimizing the risk of flooding. Despite being classified as a low hazard potential structure, it has a very high risk assessment rating due to its age and the potential impact on surrounding areas in the event of a failure.
While specific details on the condition assessment and emergency preparedness of Lock E9 Rotterdam Junction are not currently available, the structure undergoes inspections every 3 years to ensure its safety and functionality. With its historical significance and vital role in water resource management and energy production, this dam serves as a key component of the region's infrastructure and highlights the intersection of water resources and climate considerations in sustainable development efforts.
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 Lock E9 Rotterdam Junction -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Glowegee Creek At West Milton Ny | 37 cfs | → |
| Schoharie Creek At Burtonsville Ny | 676 cfs | → |
| Mohawk River At Cohoes Ny | 4,520 cfs | → |
| Hudson R Above Lock 1 Nr Waterford Ny | 9,390 cfs | → |
| Hudson River At Lock 1 Near Waterford Ny | 8,410 cfs | → |
| Hudson River At Green Island Ny | 13,600 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lock E9 Rotterdam Junction .
Boat launches
- Mohawk River
- Alco Heritage Trail Schenectady
- Lock 7 Boat Launch
- Outlet Road Town Of Ballston
- Erie Canal Towpath Town Of Clifton Park
Campgrounds
- Thompsons Lake State Park
- Thompsons Lake Campground
- Northampton Beach - Dec
- Rustic Barn Campground
- Caroga Lake - Dec
- Corinth
Track Lock E9 Rotterdam Junction 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 Lock E9 Rotterdam Junction
Where does the data for Lock E9 Rotterdam Junction 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 Lock E9 Rotterdam Junction .