Typical earthworks include road construction, railway beds, causeways, dams, levees, canals, and berms. These dimensions do not include the wall's ditches, berms and forts. Contractors installed sandbags and earthen berms to protect the facility from flooding. Vegetated berms containing marginal plants have been placed along the banks. The landscaping includes grassy berms and garden beds. They include berms, mounds, hills, cliffs, valleys, rivers, and numerous other elements. The tracks have dirt jumps, berms, and gaps. Some tracks for these race events have jumps, berms, and whoops like motocross tracks. Modern examples include trenches and berms. Most berms have sidewalls to keep liquids contained for future capture and safe disposal. A pedestrian-friendly glass entryway has replaced the former concrete berms along Jefferson Avenue. The hemispherical dome is constructed on the three berms. Among GM's first actions was to remove the concrete berms facing Jefferson Avenue. The high wings extended over meter high berms along each side of the runway. Fluctuations of the lake level caused the deposition of beach berms.