Steel highway bridges with reinforced concrete floors
A 1910 University of Illinois engineering thesis by Earl Zink Cornwell and Glenn Richard Williams on steel highway bridges with reinforced concrete floors, submitted as student work with hand-drawn plates reproduced as blueprints. Plates show white-on-blue girder sections, corrugated floor profiles, lattice and truss elevations, and dimensioned framing diagrams useful as line-grid textures and technical drawing motifs.
