Home on shoreline of Upper St. Lawrence River in Brockville, Ontario, near the end of St  Paul Street. Photo date was May 27, 2019.

Great Lakes-St. Lawrence River Shoreline Landowners and Businesses High Water Impacts Questionnaire

Have you been directly impacted by recent high water levels along the Great Lakes and St. Lawrence River shoreline?

Ongoing wet conditions throughout the Great Lakes - St. Lawrence River basin have resulted in record-high or near record-high water levels in each of the Great Lakes over the past couple of years.  These high water level conditions have caused tremendous challenges (which are still ongoing in certain areas) for people living and working along the Great Lakes – St. Lawrence River shoreline including direct damages to their homes and valued property.

The IJC’s Great Lakes-St. Lawrence River Adaptive Management (GLAM) Committee is working closely with the IJC’s International Lake Ontario – St. Lawrence River Board (ILOSLRB) and the International Lake Superior Board of Control (ILSBC) to gather input from property and business owners who have been directly affected by recent  high water levels. The committee is hoping you will provide information through this voluntary on-line questionnaire to describe the impacts you have experienced. Your input will be invaluable to the committee in evaluating and improving the scientific and engineering models that have been developed to estimate potential damages under a range of Great Lakes water level conditions. Such evaluation is a critical requirement for the GLAM Committee as it assesses the performance of the regulation plans that are used to manage outflows from Lake Superior and Lake Ontario.  The information will also be made available to the ILOSLRB and the ILSBC to support their ongoing operational activities.  Data provided through the questionnaire will only be reported in a summarized format to ensure the privacy of respondents.    

After some basic location questions, you can choose to:

  • Complete the full questionnaire and upload photos (encouraged)
  • Just upload photos
  • Just complete the questionnaire

If you choose to share any photos, please submit a file size no larger than 8MB in size.

The questionnaire should take about 20 minutes to complete, but may take much longer depending on extent of impacts being reported on.

Because water levels vary from year to year on each of the Great Lakes, you are asked to report on impacts observed during a specific calendar year (e.g. 2019, 2020, etc.). You are encouraged to complete the questionnaire once you know all of your property impacts. Should you wish to update your information at a later date in response to new or changing conditions and impacts, please complete the questionnaire again using the same address you used in the original questionnaire. 

Report on shoreline impacts observed in 2020


Report on shoreline impacts observed in 2019



Past versions of the questionnaire:


If you experience technical difficulties while completing the questionnaire, or have questions about the questionnaire, please contact the GLAM Committee at GLAM@ijc.org.

** This questionnaire is a modified version of one previously developed at Cornell University with support from New York Sea Grant that was conducted along the USA Lake Ontario and St. Lawrence River Shoreline in the summer of 2017 and then adapted by the GLAM Committee in the fall 2017 and covered all of Lake Ontario-St. Lawrence River. It has been modified again to allow responses for the entire Great Lakes-St. Lawrence River system.