Description
1907 Undivided Back 6th Ave Melan Arch Bridge Des Moines, IA. This postcard features the historic Sixth Avenue Bridge in Des Moines, Iowa, which was designed using the Melan system of concrete arch construction . Bridge Type: It is a Melan Arch Bridge, named after Josef Melan, a structural engineer who developed this concrete-steel reinforcement system. Location: The bridge spans the Des Moines River at Sixth Avenue in Des Moines, Iowa. Historical Context: Similar postcards date from the early 1900s, including versions from 1907 and 1909