Discussion of "Stability of concrete macro-roughness linings for overflow protection of earth embankment dams"

Abstract

P.A. Manso and A.J. Schleiss presented a challenging and detailed study of embankment overflow spillway systems. There are indeed numerous applications worldwide for both dam refurbishments and new structures. During the last two decades, a number of embankment dam spillways were designed with concrete overtopping protection shaped in a stepped fashion (Chanson 2001, pp. 220-230). A very different concept of overflow embankment spillway is the minimum energy loss (MEL) weir design.