sloping paving under the bridge between the roads, anti-erosion reinforcement, reinforcement of the embankment slope. paving of ir

above antierosion bridge circle cobble cobblestone construction control crevices cube cubes decorative descend design embankment erosion granite gray hill hole irregular landscape landscaping lawn outdoor palisade paneling park pattern paved pavement paving planted railing reinforcement retaining road roads roadside rough sidewalk slant slanted slope sloping steep stone street strengthen surface symbol tent terrain tiled tree urban walkway wave wood