Atlantic Canadian Culvert Assessment Toolkit (ACCAT)

Culverts are a practical solution for travelling over watercourses, but can create barriers for migrating aquatic fauna and restrict river capacity to handle large volumes of water resulting from extreme precipitation events. The Petitcodiac Watershed Alliance has identified an opportunity to create a toolkit of resources for any group wishing to assess culverts in their local area.

A network of experts was formed to look at the issue from many angles: development, fish passage, climate change, and policy. The PWA invited government, NGOs, developers, academics, and consulting firms to meet and create a standardized culvert assessment protocol that can be applied anywhere. We had input from all four Atlantic Canadian provinces, Ontario, and the New Hampshire Department of Environment. This toolkit is available here, and includes how-to videos, data collection sheets, and an online mapping program.


Our goal? To have all culverts assessed and passable by 2025 in Atlantic Canada!


We gratefully acknowledge the support of WWF-Loblaws Companies Limited. The results and recommendations presented in this report do not necessarily represent the official position of WWF-Canada and/or Loblaw Companies Limited.

We thank the following contributors for the time they dedicated to providing input, attending meetings, sharing resources, providing in-kind resources, writing letters of support, mentoring of PWA staff, and pioneering the way for culvert assessment which benefits fish and people.



Partnerships and Supporters