Stream and bank size should also be considered. If the eroding streambank is much over 12 feet high, a tree revetment may not be enough to stabilize it. If you are considering a tree revetment, it is a good idea to get advice from the Missouri Department of Conservation. Return to Top Designing, Planning and Maintaining a Tree Revetment. Although revetments can be built during any season, late winter and early spring are usually the best times.
Cedar trees placed in early summer can dry out and lose their needles before being flooded.
They are most effective at trapping silt and sand if flooded while still green and supple. Timing is not so important when hardwood trees are used. Where to begin and end the revetment - Tree revetments must always begin and end at a point on the bank that is not eroding. If a revetment does not completely cover an eroding stream stream bend, the unprotected section will continue to erode. Placing trees on the bank toe - Each tree in a revetment should be anchored at a point near the bank 'toe.