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STRUCTURE PROJECTS I 355 Stevenson Dr. UP RR / Meredith Dr. US 30 / Fox River   FAS 2601 / Blue Creek CH 18 / Fox River       Stevenson Dr. Bridge over I 55 Springfield, Illinois Project Description: Deck replacement and rehabilitation of dual four span structures carrying Stevenson Drive over FAI-55. The structures measure 258’-10” back to back of abutments with out to out widths of 35’-8” WB and 36’-7” EB. Existing steel superstructure was made composite with this redecking and plans also included retrofit of existing coverplates and replacement of damaged steel diaphragms. Substructure repairs and modifications were also included.