River Sava springs from the northwest of Slovenia. It is formed by the confluence of two rivers, Sava Dolinka and Sava Bohinjka at Radovljica. It is 940 kilometers long with 15 larger rivers which are pouring into it. Its basin covers an area of 95.720 square kilometers. Along its course there are 16 bigger cities of Slovenia, Croatia, Bosnia and Hercegovina and Serbia, with 147 bridges, and it ends in Belgrade, at the confluence with Danube.
The project is based on the research of the Sava river and the point in which it ends as a line. In this place, two axes are crossing - two thought processes which precisely define the theme. One is the relation of the left and right bank, the other is the relation of Sava and Danube - an intersection where Sava ceases to exist.
The research concerning the relation of the left and right bank of Sava, the connection between Belgrade and New Belgrade, is opened by observing the silhouette of the Danube riverbed, dominant force, and the coasts it touches. Connecting the two sides, right Danube bank with the park Ušće and the Zemun quay, in one continuous spatial unity is realized by forming a pedestrian bridge which would also be the first of this type in Belgrade. It has two moving, floating parts which glide on the circle of 2km radius, which touch and separate in the middle of the river. Its structure is hollow so the closed space is immersed in the water.
The bridge as a border on the other axis opens up a theme of marking the end of Sava. Positioning of this axis, the location is precisely defined in the point of 44°49'28.5" and 20°26'38.4". As a beginning or as an end, in this point in space, Sava is the concentrate of the whole spatial and temporal flow which it carries, and the point itself is the gate. Two obelisks mark the portal - interval, and also carry the mechanism for opening and closing of the bridge. The gliding of the two sides of the bridge is initiated by the rotation of the two obelisks around their central axes.
As a bridge, it connects the left and the right bank; as a gate, it marks the portal which these two sides form.
