Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward retreat of the shoreline can be measured and described over a temporal scale of tides, seasons, and other short-term cyclic processes. Coastal erosion may be caused by hydraulic action, abrasion, impact and corrosion by wind and water, and other forces, natural or unnatural.
Stormwater, also written storm water, is water that originates from precipitation (storm), including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil (infiltrate) and become groundwater, be stored on depressed land surface in ponds and puddles, evaporate back into the atmosphere, or contribute to surface runoff. Most runoff is conveyed directly as surface water to nearby streams, rivers or other large water bodies without treatment.
Long Island Sound is a marine sound and tidal estuary of the Atlantic Ocean. It lies predominantly between the U.S. state of Connecticut to the north and Long Island in New York to the south. From west to east, the sound stretches 110 mi (180 km) from the East River in New York City, along the North Shore of Long Island, to Block Island Sound. A mix of freshwater from tributaries, and saltwater from the Atlantic Ocean, Long Island Sound is 21 mi (34 km) at its widest point and varies in depth from 65 to 230 feet.
The National Estuarine Research Reserve System is a network of 30 protected areas established by partnerships between the National Oceanic and Atmospheric Administration (NOAA) and coastal states. The reserves represent different biogeographic regions of the United States. The National Estuarine Research Reserve System protects more than 1.3 million acres of coastal and estuarine habitats for long-term research, water-quality monitoring, education, and coastal stewardship.
A tidal marsh is a marsh found along rivers, coasts and estuaries which floods and drains by the tidal movement of the adjacent estuary, sea or ocean. Tidal marshes experience many overlapping persistent cycles, including diurnal and semi-diurnal tides, day-night temperature fluctuations, spring-neap tides, seasonal vegetation growth and decay, upland runoff, decadal climate variations, and centennial to millennial trends in sea level and climate.
Puget Sound is a deep inlet of the Pacific Ocean in Washington, extending south from the Strait of Juan de Fuca through Admiralty Inlet. It was explored and named by Captain George Vancouver for his aide, Peter Puget, in 1792.
Alewife Brook Reservation is a Massachusetts state park and urban wild located in Cambridge, Arlington, and Somerville. The park is managed by the state Department of Conservation and Recreation and was established in 1900. It is named for Alewife Brook, which was also historically known as Menotomy River, a tributary of the Mystic River.
Regarding the civil engineering of shorelines, soft engineering is a shoreline management practice that uses sustainable ecological principles to restore shoreline stabilization and protect riparian habitats. Soft Shoreline Engineering (SSE) uses the strategic placement of organic materials such as vegetation, stones, sand, debris, and other structural materials to reduce erosion, enhance shoreline aesthetic, soften the land-water interface, and lower costs of ecological restoration.
The Water Resources Development Act of 1996 is part of Pub. L. 104–303 (text)(PDF), was enacted by Congress of the United States on October 12, 1996. Most of the provisions of WRDA 1996 are administered by the United States Army Corps of Engineers.
The Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) was passed by Congress in 1990 to fund wetland enhancement. In cooperation with multiple government agencies, CWPPRA is moving forward to restore the lost wetlands of the Gulf Coast, as well as protecting the wetlands from future deterioration. The scope of the mission is not simply for the restoration of Louisiana's Wetlands, but also the research and implementation of preventative measures for wetlands preservation.
In the United States, the National Estuary Program (NEP) provides grants to states where governors have identified nationally significant estuaries that are threatened by pollution, land development, or overuse. Governors have identified a total of 28 estuaries, and the Environmental Protection Agency (EPA) awards grants to these states to develop comprehensive management plans to restore and protect the estuaries. Congress created the NEP in the 1987 amendments to the Clean Water Act.
Restore America's Estuaries (RAE) is a national 501(c)(3) non-profit conservation organization dedicated to preserving the nation's network of estuaries through coastal protection and restoration projects which promote the richness and diversity of coastal life. Based in Arlington, VA with staff in Seattle, Colorado, and Florida, Restore America's Estuaries is an alliance of eleven community-based coastal conservation organizations that includes the American Littoral Society (ALS), Chesapeake Bay Foundation (CBF), Coalition to Restore Coastal Louisiana (CRCL), Conservation Law Foundation (CLF), Galveston Bay Foundation (GBF), North Carolina Coastal Federation (NCCF), Save The Bay – San Francisco (STB-SF), EarthCorps, Save The Bay – Narragansett Bay (STB-NB), Save the Sound (STS)-a program of Connecticut Fund for the Environment, and Tampa Bay Watch (TBW).
Oyster reef restoration refers to the reparation and reconstruction of degraded oyster reefs. Environmental changes, modern fishing practices, over harvesting, water pollution, and other factors, have resulted in damage, disease, and ultimately, a large decline in global population and prevalence of oyster habitats. Aside from ecological importance, oyster farming is an important industry in many regions around the world. Both natural and artificial materials have been used in efforts to increase population and regenerate reefs.
Living shorelines are a relatively new approach for addressing shoreline erosion and protecting marsh areas. Unlike traditional structures such as bulkheads or seawalls that worsen erosion, living shorelines incorporate as many natural elements as possible which create more effective buffers in absorbing wave energy and protecting against shoreline erosion. The process of creating a living shoreline is referred to as soft engineering, which utilizes techniques that incorporate ecological principles in shoreline stabilization. The natural materials used in the construction of living shorelines create and maintain valuable habitats. Structural and organic materials commonly used in the construction of living shorelines include sand, wetland plants, sand fill, oyster reefs, submerged aquatic vegetation, stones and coir fiber logs.
Coastal Erosion in Louisiana is the process of steady depletion of wetlands along the state's coastline in marshes, swamps, and barrier islands, particularly affecting the alluvial basin surrounding the mouth of the Mississippi River at the foot of the Gulf of Mexico on the Eastern half of the state's coast. In the last century, Southeast Louisiana has lost a large portion of its wetlands and is expected to lose more in the coming years, with some estimates claiming wetland losses equivalent to up to 1 football field per hour. One consequence of coastal erosion is an increased vulnerability to hurricane storm surges, which affects the New Orleans metropolitan area and other communities in the region. The state has outlined a comprehensive master plan for coastal restoration and has begun to implement various restoration projects such as fresh water diversions, but certain zones will have to be prioritized and targeted for restoration efforts, as it is unlikely that all depleted wetlands can be rehabilitated.
The term oyster reef refers to dense aggregations of oysters that form large colonial communities. Because oyster larvae need to settle on hard substrates, new oyster reefs may form on stone or other hard marine debris. Eventually the oyster reef will propagate by spat settling on the shells of older or nonliving oysters. The dense aggregations of oysters are often referred to as an oyster reef, oyster bed, oyster bank, oyster bottom, or oyster bar interchangeably. These terms are not well defined and often regionally restricted.
The American Shore and Beach Preservation Association (ASBPA) is a private, nonprofit organization formed in 1926. It was founded to address coastal erosion and the loss of sand on America's beaches. Today, ASBPA is an association of beach and coastal practitioners, including beach towns and managers, coastal engineers, coastal geologists, dredging and ecological restoration companies, coastal academics and students. ASBPA advances coastal science and coastal engineering through its peer-reviewed journal, Shore & Beach, and an annual technical conference. It also hosts an annual coastal summit in Washington, DC to advocate for coastal policies.
The Premium River - Pine Brook Wetlands are located on Long Island Sound in the City of New Rochelle, Town of Mamaroneck, and the Village of Larchmont in Westchester County, New York. The fish and wildlife habitat is an approximately 65 acre area including Pine Brook south of the Boston Post Road, the Premium River, Premium Mill-Pond, the northeast portion of Echo Bay, and Pryer Manor Marsh.The land area bordering the wetlands complex is predominantly moderate density residential and commercial. The portion of the habitat area within Mamaroneck and Larchmont was designated as a 'Critical Environmental Area' under the State Environmental Quality Review Act.
Beaches in estuaries and bays (BEBs) refer to beaches that exist inside estuaries or bays and therefore are partially or fully sheltered from ocean wind waves, which are a typical source of energy to build beaches. Beaches located inside harbours and lagoons are also considered BEBs. BEBs can be unvegetated or partially unvegetated and can be made of sand, gravel or shells. As a consequence of the sheltering, the importance of other sources of wave energy, including locally generated wind waves and infragravity waves, may be more important for BEBs than for those beaches on the open coast. Boat wakes, currents driven by tides, and river inflow can also be important for BEBs. When BEBs receive insufficient wave energy, they can become inactive, and stabilised by vegetation; this may occur through both natural processes and human action. BEBs exist in all latitudes from beaches located in fjords and drowned river valleys (rias) in high latitudes to beaches located in the equatorial zone like, for example, the Amazon estuarine beaches.
Kellyn LaCour-Conant is a Creole restoration ecologist. Kellyn is a director of Habitat Restoration Programs at the Coalition to Restore Central Louisiana (CRCL), a nonprofit of environmentalists working to restore Louisiana's coastline. She supports wetland restoration projects and environmental justice movements.
