Fly Brook Dam dam
Fly Brook Dam
Located in Ulster, New York, the Fly Brook Dam stands as a testament to the importance of water resource management and recreation. Built in 1933, this private-owned Earth dam serves as a recreational hub, offering a serene surface area of 34 acres for visitors to enjoy. With a dam height of 25 feet and a storage capacity of 260 acre-feet, the Fly Brook Dam provides a tranquil retreat for nature enthusiasts and outdoor adventurers alike.
Regulated by the New York State Department of Environmental Conservation, the Fly Brook Dam boasts a low hazard potential and a high risk assessment rating. Despite its age, the dam has not been rated for its current condition, highlighting the need for ongoing monitoring and maintenance. While the dam does not have a spillway, it does have a spillway width of 2 feet to manage any excess water flow. With its picturesque setting and historical significance, the Fly Brook Dam remains a vital resource for both the local community and the environment.
As climate change continues to impact water resources, the Fly Brook Dam serves as a reminder of the importance of sustainable water management practices. With its rich history and recreational offerings, this dam stands as a symbol of resilience and the need for ongoing stewardship. As enthusiasts and advocates for water resource conservation, we must continue to monitor and support structures like the Fly Brook Dam to ensure a sustainable future for generations to come.
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 Fly Brook Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Wallkill River At Gardiner Ny | 327 cfs | → |
| Rondout Creek At Rosendale Ny | 91 cfs | → |
| Rondout Creek Near Lowes Corners Ny | 13 cfs | → |
| Chestnut Creek At Grahamsville Ny | 9 cfs | → |
| Bush Kill Blw Maltby Hollow Bk At West Shokan Ny | 8 cfs | → |
| Neversink River At Bridgeville Ny | 133 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Fly Brook Dam.
Boat launches
See all →
Campgrounds
See all →
Fishing spots
See all →
River runs
See all →
About Fly Brook Dam
Where does the data for Fly Brook 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 Low 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 below 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.
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.