Wing wall

Wing walls are provided at both ends of the abutments to retain the earth filling of the approaches.

[1] The soil and fill supporting the roadway and approach embankment are retained by the wing walls, which can be at a right angle to the abutment or splayed at different angles.

The wing walls are generally constructed at the same time and of the same materials as the abutments.

Wing walls can be classified according to their position in plan with respect to banks and abutments.

The classification is as follows: Wing walls provide smooth entry of water into the bridge site and provide support and protect the embankment.