River Flow Information

The river and stream flow of the Connecticut River and its tributaries are monitored by a system of gages maintained by the U.S. Geological Survey and US Army Corps of Engineers. Both current and historical data are available online through the links below.

For the Connecticut River mainstem:

For the Connecticut River watershed:

Information on current and projected flows at Connecticut River mainstem dams is available through TransCanada Hydro Northeast.

The topic of river flow is gaining increased attention from policy makers and river watchers. Flow is the muscle of a river that turns generators, provides habitat, and renews biological life — but can rearrange it too in a flood or drought.

New flood plain mapping is currently underway for the NH & VT portion of the Connecticut River from the White River Junction area to Vernon Dam, sponsored by the Federal Emergency Management Agency. For more information, contact the New England Floodplain and Stormwater Managers Association.