Roanoke Sound

The estuary

Location and importance

Roanoke sound is located in Nags Head, NC

Roanoke is important because help control erosion and reduce flooding of the mainland. Sand bars buffer the impact of waves, while plants and shellfish beds anchor the shore against tides. Swamps and marshes take the initial impact of high winds moving in from the ocean, soak up heavy rain and storm surges, and release the extra water gradually into rivers and groundwater supplies.


Rivers and Threats

Roanoke estuaries is harmed by changes to the land bordering and surrounding the estuaries and by contamination of river and ocean water. Although the North Carolina estuaries contain 3,000 square miles of surface water, 30,000 square miles of land drains into the Albemarle-Pamlico system. As land is developed for human habitation and use, roads, bridges, culverts, sewage systems, pipelines, and dams change the flow of water through the ecosystem. Whereas wetlands soak up water like a sponge and settle contaminants in the ground, asphalt and concrete deflect water so that it runs off with all its contaminants directly into the rivers, estuaries, and the sea.tlantic Ocean. Atlantic Intracoastal Waterway. Currituck Sound are rivers and waterways part of the Roanoke