Lake Champlain-Richelieu Flood Forecasting and Mapping


The comment period closed on Monday, December 14, 2015. Thank you for your comments. Comments have been compiled and are available on this page.


Cover of the draft report forecasting flooding in Lake Champlain-Richelieu River

The International Joint Commission (IJC) is requesting comments from the public on a draft report to enhance flood preparedness and warnings for Lake Champlain and the Richelieu River. Specifically the IJC asks if the report’s recommendations are sound and whether the recommendations address real needs for enhanced flood preparedness and warnings for Lake Champlain and the Richelieu River.  The Commission is also inviting the public to preview the associated flood inundation maps.

The draft report was prepared by the International Lake Champlain-Richelieu River Technical Working Group (TWG) at the request of the IJC. Following the submission of  the July 2013 Plan of Study "The Identification of Measures to Mitigate Flooding and the Impacts of Flooding of Lake Champlain and Richelieu River" (POS) the governments of the United States and Canada asked the IJC to address two issues associated with the system wide flooding in 2011:

  1. closing the gaps in the data needed for a future real-time flood forecasting and inundation mapping system, and
  2. the creation of static flood inundation map products. 

** The IJC has extended the public comment period on the TWG's draft report until close of business Monday, December 14, 2015. **

You can comment online, by email ( or by mail to the address below:

Secretary, Canadian Section
International Joint Commission
234 Laurier Avenue West, 22nd Floor
Ottawa, Ontario KIP 6K6  Canada 




Resolutions Received from Quebec Municipalities :