Tioga Dam - Mansfield Levee dam
Tioga Dam - Mansfield Levee
Tioga Dam-Mansfield Levee, located in Tioga, Pennsylvania, along the Tioga River, serves as a critical flood risk reduction structure designed and managed by the US Army Corps of Engineers. Completed in 1979, this rockfill dam stands at 29 feet in height and spans 11,740 feet in length, with a primary purpose of flood risk reduction for the surrounding area. Despite its high hazard potential, the levee system plays a vital role in reducing the risk of flooding to the borough of Mansfield. However, it is crucial to note that while the Mansfield Levee mitigates flood risk, it does not eliminate it entirely, as catastrophic flooding could still occur under extreme circumstances such as rare rainfall events or unexpected seepage leading to a breach of the levee.
To manage and reduce the risk associated with the Mansfield Levee, the US Army Corps of Engineers implements rigorous risk management measures. This includes regular inspections, maintenance, and monitoring of the levee system, with increased scrutiny during high water events. The Corps also continually updates the Emergency Action Plan and conducts emergency response exercises with federal, state, and local authorities to ensure preparedness for potential flood events. By closely monitoring weather forecasts and coordinating with relevant agencies, the USACE remains proactive in providing flood warnings and safeguarding the community of Mansfield from the devastating impacts of uncontrolled floodwaters.
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 Tioga Dam - Mansfield Levee -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Tioga River Near Mansfield | 112 cfs | → |
| Corey Creek Near Mainesburg | 5 cfs | → |
| Tioga River At Tioga | 360 cfs | → |
| Crooked Cr Bl Catlin Hollow At Middlebury Center | 31 cfs | → |
| Tioga River At Tioga Junction | 400 cfs | → |
| Nb Sugar Creek Trib Near Columbia Cross Roads | 3 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Tioga Dam - Mansfield Levee.
Boat launches
Campgrounds
- Hills Creek State Park
- Ives Run
- Tompkins River
- Twin Streams Campground
- Leonard Harrison State Park
- Colton Point State Park
Paddle runs
- The Colton Road Bridge Near Ansonia, Pennsylvania To Blackwell, Pennsylvania
- Blackwell, Pennsylvania To Short Mountain Gap Near Torbert, Pennsylvania
More reservoirs
Track Tioga Dam - Mansfield Levee 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 Tioga Dam - Mansfield Levee
Where does the data for Tioga Dam - Mansfield Levee 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 Tioga Dam - Mansfield Levee.