Furnace Brook Lake Dam dam
Furnace Brook Lake Dam
Located in Chimney Corners, Westchester County, New York, the Furnace Brook Lake Dam stands as a vital structure regulating the flow of Furnace Brook. Built in 1913, this earth dam serves primarily for recreational purposes, offering a serene lake setting for visitors to enjoy. With a height of 24 feet and a length of 430 feet, the dam has a storage capacity of 285 acre-feet, providing essential water resources for the surrounding area.
Managed by the local government and regulated by the New York State Department of Environmental Conservation, the Furnace Brook Lake Dam is inspected biennially to ensure its structural integrity and safety. Its spillway, measuring 89 feet in width, is of the uncontrolled type, capable of discharging up to 1680 cubic feet per second during peak flow events. Despite its high hazard potential, the dam's condition assessment in 2017 deemed it satisfactory, with a moderate risk rating of 3.
As a significant landmark in the region, the Furnace Brook Lake Dam not only serves as a recreational hub but also plays a crucial role in water resource management and conservation efforts. With its historical significance dating back over a century, this dam continues to be a focal point for water and climate enthusiasts alike, showcasing the importance of sustainable infrastructure in safeguarding our natural resources for future generations.
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 Furnace Brook Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Croton R @ New Croton Dam Nr Croton-On-Hudson Ny | 218 cfs | → |
| Muscoot River Below Dam At Amawalk Ny | 12 cfs | → |
| Hackensack River At West Nyack Ny | 15 cfs | → |
| Muscoot River At Baldwin Place Ny | 4 cfs | → |
| Cross River At Katonah Ny | 12 cfs | → |
| Mahwah River Near Suffern Ny | 7 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Furnace Brook Lake Dam.
Boat launches
- Cortlandt Street Cortlandt
- Croton Riverwalk Croton-On-Hudson
- Broadway Buchanan
- Battlefield Road Town Of Stony Point
- Hudson Avenue Peekskill
- Bear Mountain Bridge Road Cortlandt
Campgrounds
- Blue Mountain Reservation
- Croton Point Park
- Camping For Hikers On Ballfield Graymoor Center
- Beaver Pond Campsite
- Beaver Pond - Harriman State Park
- 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 Furnace Brook 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 Furnace Brook Lake Dam
Where does the data for Furnace Brook 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 Furnace Brook Lake Dam.