Connecticut 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 Connecticut River
Trace the reviewed Connecticut River mainstem geometry and use linked agency resources to plan for a specific reach.
Fishing the river
The river changes from cold northern water to broad warmwater and tidal reaches. American shad move upstream each spring where passage permits, while bass, walleye, trout and catfish occur in different sections. Four states regulate the corridor, and boundary-water rules require special attention.
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 Connecticut River Paddlers’ Trail documents campsites and access across long northern reaches, while Massachusetts and Connecticut manage additional riverfront areas downstream. Dams, portages, broad reservoirs and tidal current make section maps more useful than a single whole-river description.
- 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.