Thomas Pihlfeldt, engineer
Donald Becker, engineer
Clarence Rowe, engineer
For some reason this bridge is always covered with pigeons... I left them out for clarity. This time. The design is influenced by Parisian models. It's similar to the LaSalle bridge houses, but less elaborate.
The information I've found is good about naming engineers that worked on the project, but less useful at identifying the origination of the bridge house designs. Some were apparently designed by Edward Bennet (of the 1909 Plan of Chicago fame) and some follow his design specifications. But I need to track down some better documentation for the more unusal designs.