Upgrade infrastructure to accommodate or protect against flooding. Breaches of the 5-year to 10-year levees along the Nooksack River downstream of Ferndale and subsequent discharge of floodwaters into Lummi Bay can completely isolate the Lummi Peninsula from the surrounding mainland. The Lummi Nation Multi-Hazard Mitigation Plan (MHMP 2010) has identified several flood mitigation priorities to protect people and reduce property damage during these flood events, including: (1) constructing a 100-year setback levee along Ferndale Road, (2) raising Slater Road and Haxton Way and providing for underflow, and (3) monitoring the condition of culverts, tide gates, and Lummi Bay seawall for potential maintenance or repairs. So long as climate change impacts are integrated into infrastructure redevelopment projects, the recommendations of the MHMP are consistent with the findings of this report.