Retaining walls were designed as a part of the construction project of the “Hipodrom” interchange of Inner City Semi-Ring Road in Belgrade. Two retaining walls were designed, both located at interchange “Hipodrom” , one toward Sava river and other toward Rakovica.

Both retaining walls are located on the left side of the tram tracks and defend tram tracks from Senjak hill collapse. The first one is 220m long and is directed beside tram tracks toward Rakovica, and the other is 145m long and streams beside tram tracks toward Sava river.