Mathew Tschirgi Jr.

of Dubuque, Iowa
Dubuque Wagon Bridge (Dubuque County, Iowa)
Engineer, 1886
Lost Through truss bridge over Mississippi River on Road
Replaced by a new bridge

Elkader Keystone Bridge (Clayton County, Iowa)
Designer, 1889
Two-span stone arch bridge over Turkey River on Bridge Street in Elkader
Open to traffic