(ERDC-EL), to summarize known impacts on seasonal habitats used by migratory shoreline-dependent birds (primarily shorebirds and seabirds) and nesting sea turtles along the Atlantic Coast by U.S. Army Corps of Engineers (USACE) coastal engineering activities. The USACE is responsible for maintaining coastal infrastructure including ports, harbors, shoreline stabilization, and maintenance of the Intracoastal Waterway System (ICWW) along the Atlantic Coast. This infrastructure is essential to the long-term sustainability of national and economic prosperity by ensuring navigation through ports and harbors that transport goods necessary for national and international commerce. Coastal shoreline stabilization and sediment management can also provide opportunities for reductions in storm surge, flood control, residential growth, recreational activities, coastal habitat restoration, and fisheries management. Routine engineering actions by the USACE includes maintenance dredging and dredged material deposition, beach nourishment, inlet realignment and shoreline stabilization, and dike, sea wall, terminal groin and revetment construction. These actions can alter the shape, structure and function of coastal habitats, and have the potential for both positive and negative seasonal effects on shoreline-dependent organisms. The objectives of this technical note include the following: (1) introducing issues concerning coastal engineering impacts on shorelinedependent birds and sea turtles, (2) providing suggestions on specific management approaches that can be used to minimize these impacts, and (3) developing insights for future research and monitoring that should be undertaken to ensure that management actions are having the desired effect on target populations. BACKGROUND: The U.S. Atlantic coast supports more than 35 shorebird species and an additional 13 tern and skimmer species (Sibley 2016). Five species of sea turtles are known to nest on beaches along the U.S. Atlantic or Gulf Coasts. Many North American birds and sea turtles are highly dependent upon coastal, sediment-based habitats, including beaches, inlets, marshes, bays, and estuaries. Maintenance and enhancement of navigation infrastructure often requires large expenditures in equipment, and the design and implementation of engineering projects to build, maintain, or enhance existing coastal infrastructure. Harbors, ports, approach channels, and the ICWW require sufficient depths to permit navigation of large oceanic cargo vessels used for the