Contains images of some of the projects supervised by the city engineering department while Darling was on its staff. Of note are the 1920s view of the bridges across the Grand River at: Ann Street, Leonard Street, Pearl Street and Sixth Street, as well as the Interurban Bridge, Southern Michigan Railway bridge and Railroad Bridge. Also details the widening of South Division Avenue in 1928, the reconstruction of the Pearl Street Bridge (1921-1922) and the Fulton Street Bridge (1927-1928) and the construction of Lake Michigan Drive (originally known as Shawmut Boulevard).

Other images detail the Grand River while almost dry, city garage construction, city engineer's office and staff, and such equipment as cranes, trucks, scoops, street sweepers and paving equipment. As a result, the images evidence road building technology of the time as well as bridge construction techniques. In addition, the images show the area north of the reservoir, leaf collecting and snow removal work.