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:

• First Connecticut Lake, Pittsburg, NH (historical information only)
• Below Indian Stream, Pittsburg, NH (real-time data for flow and air temperature) – water temperature data are posted daily)
• North Stratford, NH (real-time data for flow, precipitation, and air temperature – water temperature data are posted daily)
• Dalton, NH (daily stream flow data)
• Wells River, VT (real-time data for flow)
• Orford, NH (historical information only)
• West Lebanon, NH (real-time data for flow)
• North Walpole, NH (real-time data for flow)
• Vernon, VT (historical records only)

For the Connecticut River watershed:

• Real-time stream flow conditions in New Hampshire
• Real-time stream flow conditions in Vermont
• Army Corps Flood Control Dams

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.

• Instream Flow Uses, Values & Policy in the Upper Connecticut River Watershed
  summary of an extensive report to the CRJC
• New: Draft instream flow rules:
  The Final Proposal for NH Env-Wq 1900 Instream Flow Rules was filed with the Office of Legislative Services on December 6, 2018. The rules will be on the agenda for the December 20, 2018 meeting of JLCAR.

  This is the blog site where updates are being posted about rulemaking.

  This is the link to the fixed text.

  This link is to the annotated text. 

• Flow policy conference report
  proceedings of the 1999 CRJC conference
• Connecticut River Flood Control Commission
  established in 1953 by the states of Connecticut, Massachusetts, New Hampshire, and Vermont

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.