Troy Lock And Dam 1 dam
Troy Lock And Dam 1
Troy Lock and Dam 1, located on the Hudson River in Troy, New York, was completed in 1915 and is owned and operated by the US Army Corps of Engineers. The dam's primary purpose is navigation, but it also serves hydroelectric purposes. With a height of 20 feet and a length of 1450 feet, the concrete gravity dam holds a storage capacity of 4200 acre-feet and has a maximum discharge rate of 215,000 cubic feet per second.
The dam's significant hazard potential is managed through regular inspections, emergency action plans, and risk management measures implemented by the US Army Corps of Engineers. The dam has an uncontrolled spillway type and one lock measuring 492 feet in length and 44 feet in width. In case of severe weather events or increased water levels, the dam may release water to manage water levels up or downstream and relieve pressure to maintain structural integrity. The Corps continually monitors the dam's condition, conducts maintenance and repairs as needed, and collaborates with local emergency managers to ensure preparedness for any potential dam-related emergencies.
In summary, Troy Lock and Dam 1 is a crucial infrastructure on the Hudson River, serving navigation and hydroelectric purposes. Despite its age, the dam is well-managed and maintained by the US Army Corps of Engineers to mitigate risks and ensure the safety of surrounding communities. The dam's strategic location and capacity play a key role in managing water levels and mitigating flood risks in the region, underscoring its importance in water resource and climate management 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 Troy Lock And Dam 1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Hudson River At Green Island Ny | 13,600 cfs | → |
| Mohawk River At Cohoes Ny | 4,520 cfs | → |
| Hudson River At Lock 1 Near Waterford Ny | 8,410 cfs | → |
| Hudson R Above Lock 1 Nr Waterford Ny | 9,390 cfs | → |
| Normans Kill At Albany Ny | 104 cfs | → |
| Valatie Kill Near Nassau Ny | 10 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Troy Lock And Dam 1.
Boat launches
- 123rd Street 6, City Of Troy
- Crescent Road Town Of Colonie
- Flightlock Road Town Of Waterford
- North Schermerhorn Road 22, City Of Cohoes
- Clamsteam Road Boat Launch
- Lock One Road Town Of Halfmoon
Campgrounds
- Cherry Plain State Park
- Cherry Plain State Park Campgrounds
- Thompsons Lake State Park
- Thompsons Lake Campground
- Pittsfield State Forest
- Sites 11, 12, 13
Track Troy Lock And Dam 1 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 Troy Lock And Dam 1
Where does the data for Troy Lock And Dam 1 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 Significant 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 Troy Lock And Dam 1.