Sleepy Hollow Dam dam
Sleepy Hollow Dam
Sleepy Hollow Dam in Athens, New York, is a privately owned structure completed in 1972 for recreational and water supply purposes. Situated on Murderers Creek, this earth dam stands at a height of 83 feet and spans 750 feet in length, with a storage capacity of 13,500 acre-feet. The dam's spillway is uncontrolled, with a width of 80 feet, and it has a high hazard potential but is currently assessed to be in satisfactory condition as of July 2018.
Owned by a private entity, Sleepy Hollow Dam is regulated by the New York State Department of Environmental Conservation, with inspections conducted every two years. The dam poses a moderate risk and is located in the Greene County area of New York, under the jurisdiction of the state. With its strategic location and significant storage capacity, the dam plays a crucial role in managing water resources and providing recreational opportunities in the region. For water resource and climate enthusiasts, Sleepy Hollow Dam serves as a focal point for understanding the intersection of infrastructure, environmental regulation, and recreational uses in sustaining water supplies for local communities.
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 Sleepy Hollow Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Kinderhook Creek At Rossman Ny | 408 cfs | → |
| Esopus Creek At Mount Marion Ny | 216 cfs | → |
| Valatie Kill Near Nassau Ny | 7 cfs | → |
| Green River Near Great Barrington | 33 cfs | → |
| Housatonic River Near Great Barrington | 335 cfs | → |
| Normans Kill At Albany Ny | 108 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Sleepy Hollow Dam.
Boat launches
- Athens Boat Launch
- Green Lake
- South River Street Coxsackie
- Anchorage Road Germantown
- Cheviot Road Germantown
- Kinderhook Lake
Campgrounds
- North/South Lake - Dec
- Lake Taghkanic State Park
- Fox Hollow Camping
- Rip Van Winkle Camping
- Koa Camping
- Copake Falls - Taconic State Park
Paddle runs
- The Massachusetts-Connecticut Border To Falls Mountain Road In Canaan, Connecticut
- Falls Mountain Road In Canaan, Connecticut To Kent Bridge
- 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
- The Hartland Headwaters To The Confluence With The Salmon Brook Main Stem
Track Sleepy Hollow 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 Sleepy Hollow Dam
Where does the data for Sleepy Hollow 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 Sleepy Hollow Dam.