Colliersville dam
Colliersville
Colliersville, also known as Goodyear Lake Dam, is a key structure located in Otsego, New York, along the North Branch Susquehanna River. Built in 1908 by Stevens - Hewitt Engineering Co., this dam serves primarily for hydroelectric purposes, providing power and recreational opportunities in the area. Standing at a height of 35 feet and with a length of 324 feet, it has a storage capacity of 7800 acre-feet and a maximum discharge rate of 11600 cubic feet per second.
Managed by the Federal Energy Regulatory Commission, Colliersville Dam holds a high hazard potential due to its critical role in water resource management. Despite its age, the dam is maintained for safety, with regular inspections conducted by the regulatory agency to ensure its structural integrity. While the risk assessment indicates a moderate level of risk, the dam's condition assessment is currently not available. Emergency action plans are in place, with the last revision in October 2019, ensuring preparedness in case of any unforeseen events.
With its historical significance and vital role in the region's water resource management, Colliersville Dam stands as a testament to early engineering achievements. As a focal point for both hydroelectric power generation and recreational activities, this structure continues to play a crucial role in sustaining the local ecosystem and economy. Despite the challenges posed by its age and hazard potential, ongoing regulatory oversight and risk management measures help ensure the safety and stability of this essential infrastructure for the community.
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 Colliersville -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| W Br Delaware River Upstream From Delhi Ny | 154 cfs | → |
| Ouleout Creek At East Sidney Ny | 67 cfs | → |
| Little Delaware River Near Delhi Ny | 51 cfs | → |
| West Branch Delaware River At Hobart Ny | 17 cfs | → |
| Town Brook Southeast Of Hobart Ny | 7 cfs | → |
| Susquehanna River At Unadilla Ny | 826 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Colliersville .
Boat launches
- Susquehanna River
- Old State Highway 7 108, Bainbridge
- Mine Kill State Park Road Town Of Blenheim
- County Highway 32b Town Of Norwich
Track Colliersville 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 Colliersville
Where does the data for Colliersville 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 Colliersville .