The area in which seas are generated by a wind having a rather constant direction and speed. Fill material Soil, rock, gravel or other matter that is placed at a specified location to bring the ground surface up to a desired elevation. If a filter is used by a landowner or local government, technical assistance should be obtained to properly match the filter with the soil. Flanking Streamflow between a structure and the bank, possibly occurring because the structure was not properly tied into the bank. Geotextile Fabric A man made fabric used in the control of soil erosion.
Various specifications are available for varying soil types and applications.
Greenbelt Strip of trees and shrubs growing parallel to a stream that prevents overuse of the top bank area by man, animals, and machinery. This strip of vegetation also retards rainfall runoff down the bank slope and provides a root system which binds soil particles together. Groundwater flow Water that moves through the subsurface soil and rocks. Headcutting The action of an upstream moving waterfall or locally steep channel bottom with rapidly flowing water through an otherwise placid stream. These conditions often indicate that a readjustment of a stream's discharge and sediment load characteristics is taking place.