West Branch Susquehanna River at Lock Haven

1. 39.50 ftApproximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
2. 35.50 ftFlood waters begin to reach teh Woodward Avenue Bridge.
3. 34.50 ftFlood waters begin to reach the North Jay Street Bridge.
4. 33.50 ftApproximate level of the FEMA 1% Annual Chance Flood level (100-year flood).
5. 32.50 ftFlood of record from 1936. Flood waters begin to reach teh railroad bridge crossing the river near Farrandsville.
6. 31.00 ftApproximate level of the FEMA 2% Annual Chance Flood level (50-year flood).
7. 30.50 ftFlood waters begin to reach the first Island Road Bridge.
8. 27.00 ftApproximately 75 percent of Lock Haven would be inundated if the levee system was not in place.
9. 25.00 ftNumerous homes and businesses would be flooded if the levee system was not in place. Approximate level of the FEMA 10% Annual Chance Flood level (10-year flood).
10. 23.00 ftConsiderable flooding would occur if the levee system was not in place.
11. 21.00 ftThe right, or south bank overflows in areas not protected by the levee system.
12. 19.00 ftRiver interests should monitor conditions for continued rising water levels.
13. 17.00 ftRiver interests should monitor conditions for continued rising water levels. Historically, at these levels, homes downstream along the antes creek are affected.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.

Most recent crests

• September 11, 2018: 21.93 ft
• December 2, 2010: 24.10 ft
• September 18, 2004: 28.13 ft
• January 20, 1996: 25.86 ft
• March 25, 1994: 17.82 ft
• November 28, 1993: 18.30 ft
• April 2, 1993: 20.00 ft
• February 15, 1984: 22.38 ft
• September 26, 1975: 22.92 ft
• June 23, 1972: 31.10 ft

• UpstreamWest Branch Susquehanna River at Renovo
• DownstreamWest Branch Susquehanna River at Jersey Shore
• Bald Eagle Creek at Beech Creek Station
• Marsh Creek at Blanchard
• Bald Eagle Creek at Blanchard
• Central PA Dams Sayers Dam on Bald Eagle Creek at Sayers Dam on Bald Eagle Creek
• Fishing Creek
• Pine Creek at Waterville
• Beech Creek at Monument

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.

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.