Antwerp Dam #2 dam
Antwerp Dam #2
Antwerp Dam #2, located in Antwerp, New York, is a concrete dam built in 1925 for water supply purposes on the Indian River. Standing at a height of 13 feet and stretching 252 feet in length, the dam has a storage capacity of 50 acre-feet, with a normal storage level of 36 acre-feet. The dam serves a drainage area of 152.1 square miles and has a maximum discharge capacity of 454 cubic feet per second.
Despite its age, Antwerp Dam #2 has a low hazard potential and a moderate risk rating. The dam features an uncontrolled spillway with a width of 143 feet. While the condition assessment of the dam is currently listed as "Not Rated," it is regularly inspected by the New York State Department of Environmental Conservation to ensure its safety and efficacy in water management. The dam is under state regulation and jurisdiction, with permitting, inspection, and enforcement processes in place.
Water resource and climate enthusiasts can appreciate Antwerp Dam #2 for its historical significance in providing water supply to the local community and its impact on the Indian River watershed. The dam's design and construction reflect early 20th-century engineering practices, showcasing the importance of sustainable water management in the region. As a critical infrastructure owned by the local government, the dam plays a vital role in maintaining water quality and quantity for both human consumption and environmental conservation efforts in Jefferson County, New York.
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 Antwerp Dam #2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| West Branch Oswegatchie R Nr Harrisville Ny | 633 cfs | → |
| Black River At Watertown Ny | 4,300 cfs | → |
| Beaver River At Croghan Ny | 893 cfs | → |
| Oswegatchie River Near Oswegatchie Ny | 832 cfs | → |
| Oswegatchie River Near Heuvelton Ny | 2,030 cfs | → |
| Independence River At Donnattsburg Ny | 219 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Antwerp Dam #2.
Boat launches
Campgrounds
- Remington Park Rv Military - Fort Drum
- Kring Point State Park
- Keewaydin State Park
- Grass Point State Park
- Dewolf Point State Park
- Ivy Lea Campsite - St. Lawrence
Track Antwerp Dam #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 Antwerp Dam #2
Where does the data for Antwerp Dam #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 Antwerp Dam #2.