Coastal Defense Structures Cape Cod 2025

Overview This feature service provides detailed spatial data on coastal defense structures across the Cape Cod region. These structures are designed to protect shorelines from erosion and include jetties, groins, and revetments made from various materials such as stone, wood, poured concrete, metal, and sand bags. Feature Layers Coastal Defense Structure Layer: This polygon layer represents constructed features that serve as shoreline protection. Data was derived from spring 2025 aerial imagery under optimal conditions to ensure high positional accuracy and detail. The imagery includes true color and near-infrared bands with a 7.5 cm ground sample distance, providing precise mapping suitable for planimetric applications. Attributes within this layer describe the type and material of the structure, the town location within Cape Cod, elevation, status, and metadata about the last updates and editors. Geographic Coverage The dataset covers the Cape Cod area within Massachusetts, focusing on coastal towns including Barnstable, Bourne, Brewster, Chatham, Dennis, Eastham, Falmouth, Harwich, Mashpee, Orleans, Provincetown, Sandwich, Truro, Wellfleet, and Yarmouth. Use Cases Monitoring and managing shoreline protection efforts Supporting environmental and coastal engineering studies Providing planners and local governments with accurate spatial data for coastal resilience projects Facilitating updates to regional planimetric datasets with high-accuracy aerial imagery