River stage
Marietta, Susquehanna River
- River level
- 37.07 ft
- Status
- Below flood stage
- 7-day change
- +2.89 ft
- Recent high
- 39.35 ft
- Recent low
- 33.49 ft
Last reported 2026-10-13 | NWS MRTP1
- 30-day change
- +2.18 ft
- Average
- 34.96 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 64.54 ft
In brief
The Susquehanna River at Marietta, PA read 37.07 ft on Oct 13, 2026, 6.93 ft below action stage. That is 2.18 ft higher than 30 days earlier.
Source: National Weather Service gauge MRTP1
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 64.54 ft | 1972-06-23 |
| 2 | 60.73 ft | 1936-03-19 |
| 3 | 58.30 ft | 1889-06-02 |
| 4 | 58.16 ft | 2011-09-09 |
| 5 | 56.80 ft | 1996-01-21 |
| 6 | 56.27 ft | 2004-09-19 |
| 7 | 55.73 ft | 1975-09-27 |
| 8 | 54.90 ft | 1946-05-29 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 44.00 ft
The right, or west bank overflows. Some roadways are affected.
- 47.00 ft
Low lying undeveloped areas on both banks are inundated. A couple of roadways are closed.
- 49.00 ft
Front Street in Wrightsville floods. Low lying areas of route 624 on the right, or west bank and along route 441 on the left, or east bank are also affected. Riverside recreation area is also inundated.
- 52.00 ft
A number of residences in the Wrightsville and Columbia areas begin to be affected.
- 54.00 ft
Numerous homes and businesses in the Columbia and Wrightsville areas are affected by high water. The Wilton Company in Wrightsville experiences problems with high water.
- 56.00 ft
Widespread flooding occurs on both sides of the river. Many homes and businesses are affected.
- 59.00 ft
Widespread flooding occurs on both sides of the river. Many homes and businesses are affected by high water. The Wrightsville water supply is affected by flood waters.
- 64.00 ft
Widespread flooding on both banks affects homes, businesses, and the water and sewage plants.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Susquehanna River flooding at Marietta?
No. The Susquehanna River at Marietta is at 37.07 ft, 6.93 ft below action stage.
What is the flood stage at Marietta?
The National Weather Service sets action stage 44 ft, minor flooding 49 ft, moderate flooding 52 ft and major flooding 54 ft.
What is the highest the Susquehanna River has been at Marietta?
The highest crest on record is 64.54 ft, on 1972-06-23.
Is the Susquehanna River high or low right now at Marietta?
At 37.07 ft it is higher than 96% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge MRTP1); daily history from the U.S. Geological Survey (site 01576000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.