July 4 – official opening of
Eads Bridge (combined road and rail steel arch) over the
Mississippi River at St. Louis, Missouri, designed by
James B. Eads. It is the longest arch bridge in the world at this time, with an overall length of 6,442 feet (1,964 m); the first use of true steel as a primary structural material in a major bridge project;[13] the first built using
cantilever support methods exclusively; and the first major project to make use of
pneumatic caissons
July 4 – official opening of
Eads Bridge (combined road and rail steel arch) over the
Mississippi River at St. Louis, Missouri, designed by
James B. Eads. It is the longest arch bridge in the world at this time, with an overall length of 6,442 feet (1,964 m); the first use of true steel as a primary structural material in a major bridge project;[13] the first built using
cantilever support methods exclusively; and the first major project to make use of
pneumatic caissons