Tomsey Pond Dam dam
Tomsey Pond Dam
Tomsey Pond Dam, located in Ketchumville, New York, is a privately owned earth dam built in 1955 for recreational purposes. With a height of 18 feet and a length of 340 feet, the dam has a storage capacity of 51 acre-feet, serving as a popular spot for outdoor activities in the area. The dam is situated on the Ketchumville Branch of the Nanticoke River, with a low hazard potential but a high risk assessment rating of 2.
Despite being last inspected in 1993, the dam is regulated by the New York State Department of Environmental Conservation (NYS DEC) and meets state permitting, inspection, and enforcement requirements. While the dam does not have a spillway, it is equipped with outlet gates and has a maximum discharge capacity of 174 cubic feet per second. The surrounding area has a drainage area of 0.25 square miles and a surface area of 9 acres, making it an important water resource for the community.
Water resource and climate enthusiasts can appreciate Tomsey Pond Dam for its role in providing recreational opportunities and water storage in Tioga County, New York. As a state-regulated structure with a high-risk assessment, the dam serves as a reminder of the importance of proper maintenance and monitoring to ensure the safety and sustainability of water infrastructure in the region. With its picturesque location and historical significance, Tomsey Pond Dam is a valuable asset for both local residents and visitors seeking to enjoy the natural beauty and outdoor amenities it offers.
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 Tomsey Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Susquehanna River At Vestal Ny | 3,610 cfs | → |
| Chenango River Near Chenango Forks Ny | 1,340 cfs | → |
| Susquehanna River At Owego Ny | 3,590 cfs | → |
| Sixmile Creek At Brooktondale Ny | 83 cfs | → |
| Sixmile Creek At Bethel Grove | 21 cfs | → |
| Chenango River At Greene Ny | 540 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Tomsey Pond Dam.
Track Tomsey Pond 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 Tomsey Pond Dam
Where does the data for Tomsey Pond 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 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 Tomsey Pond Dam.