The Nooksack and Sumas Transboundary Flood Initiative

The Transboundary Flood initiative (TFI) uses a collaborative framework to identify and pursue actions to reduce flood risk and restore habitats.

Floodwaters do not recognize borders. Repeated flooding from the Nooksack River in Whatcom County into the Sumas Prairie in British Columbia is a shared challenge on both sides of the US/Canada border. The flood events in 1990 and 2021 demonstrate that flood risk in the transboundary area of the Nooksack and Sumas watersheds is not an issue that any one government or First Nation can solve alone.

Each jurisdiction has unique priorities, perspectives, and authorities regarding flood mitigation in the transboundary area. We will be more effective by working together through the TFI.