The Zayandeh-Rood River flows from west to east through the ancient city of Isfahan, and this ancient Iranian city has always divided this land into two halves, northern and southern. The passage of this ever-living river, in addition to refreshing the beautiful city of Isfahan, has divided it into two parts, and to eliminate this gap, the construction of several bridges, including the Marnan Bridge, which is 160 meters long and has 17 spans, is planned.