Susquehanna River levels, gauges and monitoring stations
Check the live river overview or open an individual USGS gauge for current streamflow, gauge height, trends and historical context.
Follow the Susquehanna River
Trace the reviewed Susquehanna River mainstem geometry and use linked agency resources to plan for a specific reach.
Fishing the river
Smallmouth bass are a prominent warmwater fishery through many rocky mainstem reaches; walleye, catfish and other species vary by section. American shad restoration on the lower river is tied to fish passage at hydroelectric dams. Pennsylvania, New York and Maryland publish separate seasons, limits and advisories.
Fish you may encounter
Where the river changes
- Rules, seasons, closures and consumption advice vary by jurisdiction and can change; consult the linked fish and wildlife agency before a trip.
- A gauge reading describes conditions at that monitoring location; it does not establish fishing quality or safety elsewhere on the river.
On the water
The North Branch, West Branch and Lower Susquehanna each have documented water-trail resources. Islands, ledges, dams and rapidly changing releases make those reach-specific maps and hazard notices essential; a water-trail designation does not make every mainstem segment continuously passable.
- Use the linked managing-agency information for current access, permits, closures and river conditions.
- Do not treat station data as a substitute for local hazard information, weather forecasts or on-water judgment.