Delaware 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 Delaware River
Trace the reviewed Delaware River mainstem geometry and use linked agency resources to plan for a specific reach.
Fishing the river
Cold Delaware tailwaters support managed wild-trout fisheries, while warmer reaches hold smallmouth bass and the tidal river supports striped bass and catfish. American shad migrate from the estuary into the free-flowing mainstem. Regulations change at state boundaries and in special tailwater reaches.
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
National Park Service units publish access, river-condition and safety guidance for the Upper Delaware, Middle Delaware and Delaware Water Gap. Rapids, cold water, private land and long distances between legal access points vary by reach, so visitors should use the matching park map rather than treating the river as one uniform trip.
- 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.