Lake Tiorati Dam dam
Lake Tiorati Dam
Lake Tiorati Dam, located in Stony Point, New York, is a concrete structure completed in 1915 for the primary purpose of recreation. With a height of 21 feet and a length of 518 feet, the dam holds a maximum storage capacity of 6,000 acre-feet and covers a surface area of 292 acres. The dam is situated on Tiorati Brook and is regulated by the New York State Department of Environmental Conservation (NYS DEC).
Despite its satisfactory condition assessment, Lake Tiorati Dam has a high hazard potential, making regular inspections crucial to ensure its safety. The dam features an uncontrolled spillway with a width of 20 feet and has a drainage area of 1.04 square miles. The dam also has a moderate risk assessment rating, indicating a need for ongoing risk management measures to mitigate potential hazards.
Overall, Lake Tiorati Dam serves as a vital recreational resource in Orange County, New York, offering opportunities for boating, fishing, and other outdoor activities. Climate and water resource enthusiasts can appreciate the importance of maintaining and monitoring this dam to ensure the safety of both the surrounding community and the natural environment.
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 Lake Tiorati Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mahwah River Near Suffern Ny | 7 cfs | → |
| Ramapo River At Ramapo Ny | 55 cfs | → |
| Ramapo River At Suffern Ny | 35 cfs | → |
| Ramapo River Near Mahwah Nj | 73 cfs | → |
| Croton R @ New Croton Dam Nr Croton-On-Hudson Ny | 385 cfs | → |
| Hackensack River At West Nyack Ny | 15 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Tiorati Dam.
Boat launches
- Battlefield Road Town Of Stony Point
- Broadway Buchanan
- Bear Mountain Bridge Road Cortlandt
- Hudson Avenue Peekskill
- Cortlandt Street Cortlandt
- Laurel Meadow Drive Town Of Warwick
Campgrounds
- Beaver Pond Campsite
- Beaver Pond - Harriman State Park
- Blue Mountain Reservation
- Round Pond Military
- Camping For Hikers On Ballfield Graymoor Center
- Croton Point Park
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 Lake Tiorati 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 Lake Tiorati Dam
Where does the data for Lake Tiorati 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 Lake Tiorati Dam.