Enhancing coastal resilience in three Cape Cod towns

Cape Cod’s communities face increasing threats from coastal erosion, sea level rise, and more severe storms, all of which endanger property, infrastructure, and natural resources. Flooding and erosion have already damaged roads, homes, and wetlands, with climate change projected to intensify these risks. Sustaining the Cape’s resilience requires strategic planning, preservation of wetland buffers, and restrictions on development in vulnerable areas.

To address these challenges, the Commission has developed model wetlands and zoning bylaws, including the Coastal Resilience Bylaw. This bylaw combines natural resource protection, flood mitigation, and land use strategies to reduce risk in floodplains and facilitate wetland migration. Complementary regulations set stricter standards than FEMA (Federal Emergency Management Agency) requirements, such as limiting development in high-risk areas, restricting fill, requiring elevation for substantial improvements, and prohibiting hazardous material storage.

The Coastal Resilience Zone and Future Flood Zone extend regulatory oversight both horizontally and vertically, enabling local boards to manage areas outside of FEMA-designated floodplains. Special Transition Areas support wetland migration, while new performance standards ensure development does not increase floodwater velocity or volume.

These regulations and the model zoning bylaw provide towns with a flexible framework to address evolving coastal resilience challenges. Municipalities can tailor the language, select planning horizons, and incorporate scientific and local expertise, all while maintaining consistency with broader policies and community values.

Commission staff are partnering with the Pleasant Bay Alliance towns of Chatham, Harwich, and Orleans to implement the model coastal resilience bylaw and its accompanying regulations. Staff are collaborating with local officials in each town to adapt the model bylaw and regulations to meet specific local needs.

This adaptable approach fosters collaboration among local boards and aligns with broader resilience initiatives. By adopting these models, towns build a stronger foundation for proactive coastal management and resource protection, uniting environmental and economic priorities and reinforcing a shared commitment to regional sustainability.