As the largest bridge of the second section of Manjil-Rodbar freeway, Rudbar bridge is located at theen trance of Rudbar city and in the vicinity of Sefid roud river. The total length of this bridge is 1165 meters consisting of three structural systems of pile-bent bridge and cast- in-place slab (45meters in the beginning and 135 meters in the middle parts), -40 meter prestressed concrete beam and cast-in-place slab (10 openings in the initial parts and 4 openings in the middle parts) and two balanced can tilever bridge (one in the middle part to pass over the existing Rudbar bridge with 50+85+50 spans and other balanced can tilever bridgedevicewith65+110+65spans at the end of the bridge towards crossing the Sefid roudriver). All foundations are placed on deeppiles with adiameter of 1. 5meters. TareAzad Bridge, the end part of this bridge, due to its high importance incrossing the Sefidroud River and the lack of alternative options in times of crisis, has been designed and implemented using pendulum-type friction seismic isolators for the first time in Iran.