This existing riveted, wrought-iron swing span was built in 1888 and is a 252 feet long pin-connected through truss structure. It measures 28 feet center-to-center of truss. The bridge carries two open deck tracks over the Christina River. The pivot pier and two rest piers are of stone masonry construction founded on timber mats supported by timber piles. The piers are protected by timber fenders which delineate a clear channel width of 84 feet for each arm of the swing span. The north approach and south approach consist of eight spans and six spans, respectively, of rolled I-beam sections. The approach substructures are reinforced concrete piers supported by steel H-piles. The approaches were constructed in the early 1950's.

The rehabilitation of this bridge was based on the report recommendations of a separate in-depth inspection and rating of the bridge performed in 1998. The bridge was modified to carry only one railroad track capable of supporting 315K car loadings at a design speed of 30 mph. The clearance envelope was modified to provide 20'-9" vertical clearance. The span was raised by 1'-6" to keep the machinery rack and pinion out of the water. Mechanical and electrical bridge system components were rehabilitated or replaced, as necessary. The deteriorated fenders were replaced. The approach beams were reused but the substructure and foundation units were replaced. Prestressed concrete piles were utilized.