Cliff erosion is a common storm-induced hazard along the West Coast. While coastal erosion affects all regions of the United States, erosion rates and potential impacts are highly localized. Average coastline recession rates of 25 feet per year are not uncommon on some barrier islands in the Southeast, and rates of 50 feet per year have ...

Armoring a chronically eroding coast leads to beach loss. In an era of accelerating sea level rise, the threat of chronic erosion and beach loss is growing, and the use of shoreline data becomes a potentially significant coastal management tool in the effort to …

The loss of sea ice in the Arctic also exposes shorelines to rapid coastal erosion. For most of the year, landfast sea ice has buffered Alaska's northern coastline from waves, winds, and currents. Current observations and future projections show that as sea ice melts earlier and forms later in the year, Arctic coasts will be more vulnerable to ...

Climate change will increase sea levels, shoreline erosion, and the frequency and intensity of coastal flooding along the California coast and in the San Francisco Bay region. Resource managers and planners in the area need locally relevant maps and tools that help them understand vulnerabilities and plan for action.

Results are based on satellite images taken between 1972 and 2014. While erosion is typically the greatest concern, areas with high sediment deposition can also create challenges, such as shifting river channels and narrowing lagoon or estuary entrances that can block travel.

Erosion and Shoreline Recession Coastal erosion is the process by which local sea level rise, strong wave action, and coastal flooding wear down or carry away rocks, soils, and/or sands along the coast.

Historical erosion data and historical flood data simply aren't sufficient for managing coasts with higher water levels. Future coastal development must take sea level rise into account. The Coastal Zone Management Act of 1972, as amended, states that “because global warming may result in a substantial sea level rise with serious adverse ...

Align local and regional beach erosion prevention efforts with regional and state plans. Use vegetative cover to help stabilize slopes, reduce slope failure and minimize waterbody sedimentation. Plant shoreline vegetation in the coastal zone to assist in dissipation of the wind and breaking waves.

Extreme Coastal and Riverbank Erosion Forces Newtok to Consider Relocation. Newtok is a Yup'ik Alaskan Native Village of 450 residents on the west coast of Alaska, near the confluence of the Newtok and Ninglick Rivers. Severe coastal erosion at the average rate of 75' to 100' of shoreline per year has been consumed by seasonal storm surges.

Provide incentives for projects that restore or create marine coastal habitat areas (e.g., beaches, dunes, wetlands) to minimize coastal erosion. Provide incentives for proper shoreline stabilization and bank stabilization methods, including sloping or grading techniques, terracing hillsides or installing riprap boulders or geotextile fabric.