As chief bridge engineer, we evaluated the capacity of this existing steel suspension bridge and recommended rehabilitation modifications to strengthen the structure. Developed test procedures and performed space frame linear and non-linear static and dynamic structural analyses to verify capacity of the members. This existing steel suspension bridge has a main span of 820 feet and an overall length of 1,582 feet. The stiffening system utilizes a truss system as the main girder, which was found to effectively distribute the loads to the hangers. The main towers are H-shape concrete towers, and their movements at the top were investigated through truck loading and later verified through a second order analysis. Structural rehabilitation schemes were recommended to strengthen certain truss connections and provide additional bracing to the floor beams.