Congers Lake Dam dam
Congers Lake Dam
Congers Lake Dam, located in Congers, New York, was completed in 1892 and serves as a recreational site for water enthusiasts. The dam, measuring 8 feet in height and 333 feet in length, impounds the East Branch of the Hackensack River and has a storage capacity of 466 acre-feet. The dam's primary purpose is for recreation, with a surface area of 112 acres and a normal storage level of 187 acre-feet.
Managed by the local government and regulated by the New York State Department of Environmental Conservation, Congers Lake Dam has a high hazard potential but has been deemed to be in satisfactory condition. The dam features an uncontrolled spillway with a width of 43 feet and undergoes inspections every two years, with the most recent assessment conducted in June 2019. Despite its moderate risk assessment, the dam has not been modified in recent years and does not have an Emergency Action Plan (EAP) prepared.
For water resource and climate enthusiasts, Congers Lake Dam offers a fascinating glimpse into the intersection of human infrastructure and natural water systems. Its historical significance, recreational benefits, and regulatory oversight make it a noteworthy site for those interested in the management and conservation of water resources in the region.
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 Congers Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Hackensack River At West Nyack Ny | 12 cfs | → |
| Croton R @ New Croton Dam Nr Croton-On-Hudson Ny | 180 cfs | → |
| Pascack Brook At Park Ridge Nj | 7 cfs | → |
| Mahwah River Near Suffern Ny | 7 cfs | → |
| Saddle River At Upper Saddle River Nj | 4 cfs | → |
| Hackensack River At Rivervale Nj | 31 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Congers Lake Dam.
Boat launches
- Croton Riverwalk Croton-On-Hudson
- Cortlandt Street Cortlandt
- Battlefield Road Town Of Stony Point
- Broadway Buchanan
- Hudson Avenue Peekskill
- Bear Mountain Bridge Road Cortlandt
Campgrounds
- Croton Point Park
- Beaver Pond - Harriman State Park
- Beaver Pond Campsite
- Blue Mountain Reservation
- Camping For Hikers On Ballfield Graymoor Center
- Round Pond Military
Fishing spots
Paddle runs
- Kent Bridge To Boardman Bridge
- Pond Downstream Of Shepaug Reservoir Dam, Marked By Service Road Bridge To Ends In Backwaters Of Lake Lillinonah, Near Roxbury Falls
- Begins Downstream Of The Borough Of Bantam, At Stoddard Road Bridge To The Confluence With The Shepaug River
Track Congers Lake Dam 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 Congers Lake Dam
Where does the data for Congers Lake Dam 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 Congers Lake Dam.