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Stream bank erosion along Pimmit Run in McLean, Virginia, the result of upstream development. Bank erosion is natural, but can be accelerated by humans. Bank erosion is the wearing away of the banks of a stream or river. This is distinguished from erosion of the bed of the watercourse, which is referred to as scour.
A river bank can be divided into three zones: Toe zone, bank zone, and overbank area. The toe zone is the area which is most susceptible to erosion. [2] Because it is located in between the ordinary water level and the low water level, it is strongly affected by currents and erosional events. [2]
Diascund Creek [1] is the major tributary of the Chickahominy River in Virginia, part of the Chesapeake Bay watershed. The creek flows south and forms the border between New Kent County on the west and James City County on the east.
Analysis of the site: The bank erosion rate, elevation level, vegetation, wave energy, wind patterns, wave activity and soil type of the proposed site need to be examined to determine if it is an appropriate area for living shoreline stabilization. Restoration plans of stabilization activities are designed upon completion of the initial site ...
The Outer Banks are particularly vulnerable to sea level rise and coastal erosion; the effects of climate change compounds existing coastal erosion caused by poor coastal management and construction practices. [4] In some locations on the banks, sea levels rose 5 inches from 2011 to 2015. [4]
As flow enters the bank of an alluvial river, the centrifugal force created by the bend instigates helicoidal flow, a corkscrew like pattern of flow, which drives the hydraulic action acting on the opposing bank. [1] This is where the primary process in river channel migration of bank erosion occurs. Often the bank is undercut, another result ...
Bank stabilization is a common objective for stream-restoration projects, although bank erosion is generally viewed as favorable for the sustainability and diversity of aquatic and riparian habitats. [9] This technique may be employed where a stream reach is highly confined, or where infrastructure is threatened. [31]
A cut bank, also known as a river cliff or river-cut cliff, is the outside bank of a curve in a water channel , which is continually undergoing erosion. [1] Cut banks are found in abundance along mature or meandering streams, they are located opposite the slip-off slope on the inside of the stream meander.