George B Stevenson dam
George B Stevenson
George B Stevenson is a state-owned dam located in Cameron, Pennsylvania, along the First Fork Sinnemahoning Creek. Completed in 1956, this Earth-type dam stands at a height of 166 feet and has a length of 1925 feet, with a storage capacity of 127,000 acre-feet. The primary purpose of the dam is flood risk reduction, with additional benefits for recreation in the area.
Managed by the Pennsylvania Department of Environmental Protection, the George B Stevenson dam is regulated, permitted, inspected, and enforced by state authorities. With a high hazard potential and a satisfactory condition assessment, the dam plays a crucial role in protecting the surrounding area from flooding events. The dam is situated in Grove Township and falls under the jurisdiction of the Pennsylvania state agency.
Water resource and climate enthusiasts will appreciate the significance of the George B Stevenson dam in managing flood risks and providing recreational opportunities in the region. The dam's strategic location along the First Fork Sinnemahoning Creek, its impressive height, and storage capacity underscore its importance in safeguarding the community and the environment. As a state-owned structure with a history dating back to the mid-20th century, the George B Stevenson dam continues to serve as a vital infrastructure for water resource management in Pennsylvania.
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 George B Stevenson -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| First Fork Sinnemahoning Cr Near Sinnemahoning | 501 cfs | → |
| First Fork Sinnemahoning Creek At Wharton | 371 cfs | → |
| Sinnemahoning Creek At Sinnemahoning | 1,250 cfs | → |
| Driftwood Br Sinnemahoning Cr At Sterling Run | 422 cfs | → |
| East Fork Sinnemahoning At Wharton Township | 116 cfs | → |
| Kettle Creek Near Westport | 559 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near George B Stevenson.
Boat launches
- Sinnemahoning State Park
- Kettle Creek State Park
- Keating Mountain Road West Keating Township
- North Bend
- Hyner
- Karthaus Access And Boat Ramp
Track George B Stevenson 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 George B Stevenson
Where does the data for George B Stevenson 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 George B Stevenson.