Siosepol or Siose Bridge[ˈsiː oˈseh ˈpol] (Persian: سی و سه پل, which means 33 Bridge or the Bridge of 33 Arches), also called the Allah-Verdi Khan Bridge, is one of the eleven bridges of Isfahan, Iran and the longest bridge on Zayandeh River with the total length of 297.76 metres (976.9 ft). It is highly ranked as being one of the most famous examples of Safavidbridge design.
It was constructed by the finance and the inspection of Allahverdi Khan Undiladze chancellor of Shah Abbas I, an Iranian ethnic Georgian, it consists of two rows of 33 arches from either sides, left and right. There is a larger base plank at the start of the bridge where the Zayandeh River flows under it, supporting a tea house which nowadays is abandoned due to the shortage of water and the river drought.
Other names for the bridge include "The Bridge of 33 Springs", "The Bridge of Chaharbagh", and finally "Zayandeh River Bridge".