Grade Stabilization
A dam, wall, or drop is used to reestablish or maintain streambed elevation (fig. 10). Maintenance of streambed elevation is necessary in stabilizing streambanks. Environmental considerations in designing grade stabilization measures include choice of construction materials, fish passage, plunge pools, number of structures used and their locations, and incorporation of vegetation.

Figure 10.
Grade stabilization structures used to either maintain existing grade or raise streambottom by trapping sediment.