Showing 325 foot cantilever of main span during construction. At the right, derrick boat pulling cofferdam from around Pier No. 3., Cape Girardeau Progress Feb. 9, 1928
Plan view of cofferdam for Pier No. 3. Placing concrete seal for caisson; concrete chute and material lock in upper part of picture. Man lock near center of cofferdam.
Construction of Cape Girardeau Bridge. 1927. View eastwardly from top of Span No. 1. Erecting steel from upper chord, showing rivet forge and traveler.
Construction of Cape Girardeau Bridge. 1927. Plan view of Pier No. 4 under construction. Checking alignment of pier and setting points for another 8 foot section of forms.
Cofferdam construction for Pier No. 4. Burning bolt holes along edges of 22' x 42' steel caisson for bolting bottom of wood cofferdam to top of caisson. Note material shaft near center of caisson.
Construction of the Cape Girardeau Bridge. 1927. Pouring concrete for seal of caisson Pier No. 2. Derrick boat handling door on material lock; compressor barge maintaining air pressure in caisson., Cape Girardeau 12-4-'27 Pouring Seal in #2 Cais.
Caisson for Pier No. 4 landed and sealed. Pouring concrete in bottom section of dumb-bell pier on caisson base inside cofferdam and below bed of river.