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FIVE BIRDS
Hatteras Inlet, NC
Change is a constant along North Carolina’s coast. Natural processes, like erosion, wind, weather events, and tide change our shoreline’s appearance as sand moves from one place to another — sometimes opening and filling inlets, widening or narrowing beachfront, and altering the tide line of soundside creeks and marshes. Change also comes from people, whether through land management or coastal development, ranging from building living shorelines to installing bulkheads to dredging. While the shoreline moves and changes, it is more difficult for people and the structures we build to do the same.
SENTINEL GHOSTS
Swan Quarter, NC
Long before rising seas inundate land, habitats at the edges of our sounds will change. Ghost forests — remnant carcasses of trees that once filled maritime forests — are becoming more common as salt water penetrates farther inland and remains longer. Trees sequester more carbon than other types of vegetation, so carbon storage is a good indicator of vegetation type. New research has measured increasing losses in carbon storage between 2001 and 2014 along the edges of the Albemarle and Pamlico Sounds. The results indicate that forests are changing to marshes or being lost altogether. Sea level rise and wind tides may be factors, but fires, which dry out peat and wick salt water from the sounds into land, may also play a part.
STATIONED
Hatteras Inlet
In 1955, a hurricane washed the Hatteras Inlet U.S. Coast Guard Lifeboat Station on Ocracoke Island into the sea. The location of the remaining pilings, once on land, document the power of erosion over time. In the future, as climate and sea level changes, erosion patterns may accelerate.
Today, some North Carolina communities, like the Town of Nags Head, and counties like Hyde and Tyrell are looking to the past as they plan for the future. Will coastal change usher these communities toward higher land, as it did residents of Diamond City in Carteret County at the turn of the 20th century? Or, will local communities seek protective and adaptive measures to protect infrastructure, and also educate and support citizens as they plan for an uncertainty?
TIDE GATE
Swan Quarter, NC
A dike is a long wall, made of earth or materials like steel or concrete, built to keep out floodwaters. A system of canals, pumps and tide gates ensure that water inside a dike can still get out, and that creeks can still flow in during normal conditions.
The 17.7-mile dike surrounding Swan Quarter took 46 years to complete. The $13-million dike was first proposed to protect valuable farmland from wind-driven saltwater intrusion. When Hurricane Irene struck in 2011, the dike protected the village of Swan Quarter from soundside tidal surge. During tropical storm events in 2015 and 2016, however, farmers had to pump the village because winds kept the Pamlico Sound levels high for days, keeping tide gates closed and trapping floodwaters from heavy rain inside the dike.
In 2009, the Natural Resource Conservation Service estimated the dike provides over $707,000 annual economic benefit by reducing damages to homes, cropland, roads, and bridges.
SUNRISE OVER THE PUNGO
Pungo River, NC
It may be easy to think of coastal change as primarily a beachfront issue, but it affects every landmass that borders water. Some of North Carolina’s most vulnerable places to change are inland, along the sounds and rivers.