Amelia Earhart herself would appreciate how this bridge project took ? ight. The job consists of constructing four units of prestressed concrete girder spans and a 527-ft continuous tied-arch span, and features a unique ?ooring system and deck. HNTB designed each tie girder to bolt together rather than welding them. The move will make the span more redundant. The stringers also have slotted connections on every other ?oor beam. A ternary concrete mix was used on the bridge deck.