A live crib wall is a frame built with untreated timers and filled with rocks, soil and live cuttings. It is a very common bank restoration technique that provides bank stabilization and reduces erosion. Live crib walls reduce the sediment load and establish vegetation, which provides shade, leaf litter, and habitat for insects, which become food for fish. Live crib walls can also be used in areas where grading the bank to a more gradual slope is not possible. However, their installation requires heavy equipment and they may only last for about 5 years.