Rivers in Pennsylvania
Tioga River at Mansfield
Below low-water threshold
-0.05ftStage
Observed Tue, Sep 22, 5:00 PM EDT
- Flood stage
- 12.00 ft
- Forecast crest
- -0.10 ftTue, Sep 22, 8:00 PM EDT
- Record crest
- 20.13 ft1975
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 14.00 ft |
| Moderate flood | 13.00 ft |
| Minor flood | 12.00 ft |
| Action | 9.00 ft |
- 20.50 ftFEMA 0.2% Annunal Chance Flood Level (500-year flood).
- 20.10 ftFlood of record from September 1975. Flood waters begin to reach the West Hill Road bridge in Convington.
- 19.00 ftFEMA 1% Annunal Chance Flood Level (100-year flood).
- 16.50 ftFEMA 2% Annunal Chance Flood Level (50-year flood). Flood waters begin to reach the Route 660 bridge on the north side of Covington and the North Williamson Road bridge just south of Covington.
- 16.00 ftFlood waters begin to reach the Spencer Road Bridge.
- 14.00 ftFEMA 10% Annunal Chance Flood Level (10-year flood).
- 12.00 ftWater begins to affect several homes and a business along business Route 15 south of the city of Mansfield next to Canoe Creek.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 6% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
14 crests on NOAA’s list since 1972.
| # | Date | Stage |
|---|---|---|
| 1 | September 25, 1975 | 20.13 ft |
| 2 | January 19, 1996 | 18.87 ft |
| 3 | August 18, 1994 | 18.57 ft |
| 4 | June 22, 1972 | 17.98 ft |
| 5 | December 2, 1996 | 16.50 ft |
| 6 | May 14, 1978 | 16.17 ft |
| 7 | April 16, 1993 | 16.12 ft |
| 8 | October 23, 1990 | 15.44 ft |
| 9 | January 9, 1978 | 15.26 ft |
| 10 | September 18, 2004 | 14.21 ft |
| 11 | September 8, 2011 | 13.08 ft |
| 12 | April 2, 2005 | 12.30 ft |
| 13 | August 9, 2024 | 12.19 ft |
| 14 | January 14, 2005 | 9.09 ft |
Most recent crests
- August 9, 2024: 12.19 ft
- September 8, 2011: 13.08 ft
- April 2, 2005: 12.30 ft
- January 14, 2005: 9.09 ft
- September 18, 2004: 14.21 ft
- December 2, 1996: 16.50 ft
- January 19, 1996: 18.87 ft
- August 18, 1994: 18.57 ft
- April 16, 1993: 16.12 ft
- October 23, 1990: 15.44 ft
Nearby
Upstream, downstream and the gauges around this one.
- DownstreamCentral PA Dams Tioga-Hammond Dam on Tioga River at Tioga-Hammond Dam on Tioga River
- Corey Creek at Mainesburg
- Tioga River at Tioga
- Crooked Creek at Catlin Hollow at Middlebury Center
- Tioga River at Tioga Junction
- Sugar Creek at Columbia Crossroads
- Central PA Dams Cowanesque Dam on Cowanseque River at Cowanesque Dam on Cowanseque River
- Cowanesque River at Lawrenceville
What this means
Forecasts by the Middle Atlantic River Forecast Center. Forecasts are issued routinely year-round. Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.