Stream Bank Protection
water can scour and erode stream banks and watercourses
causing disturbances to fish habitat and drinking water
quality. Water Bioengineering involves the use of vegetation
for the engineering and ecological enhancement of riverbanks
and shores (Schiechtl and Stern, 1994).
includes many techniques that can be employed to control
stream bank erosion. Selection of the most appropriate
approach requires careful consideration of project objectives,
habitat issues, site conditions, and budgetary constraints.
techniques may be classified as one of three structural
types (Watershed Restoration Technical Circular No.9):
1. Rock methods
employ large boulder or rip rap to armor the bank or
redirect flows. Types include: rock toe keys, groynes,
rock revetments, turning rocks and tie backs.
methods utilize plants or plant cuttings for bank stabilization.
Types include: herbaceous ground cover, rooted stock,
live cuttings, fascines, brush mattresses and brush
methods incorporate a variety of materials such as rock,
timber, soil or plants and may also include fabrics
such as jute or coil mesh. Types include: joint planting,
vegetated geogrids, vegetated riprap, live cribwalls,
tree revetments and large woody debris.