Concrete curved-chord through girder bridge

[1] C.V. Dewart, the first professional bridge engineer of the Michigan State Highway Department, designed the type.

[3] By the early 1920s, the Michigan State Highway Department had produced standardized designs for these bridges in lengths of 50, 60, 70, 75 and 90 feet.

[1] The first such bridge in Michigan was built in 1922 over the Raisin River at Tecumseh.

By the end of the decade, the design fell out of favor since it could not be widened to handle increasing traffic.

Joseph River Bridge, built in 1922 in Mottville.

The first camelback bridge in Michigan over the Raisin River near Tecumseh
The three-span US 12–St. Joseph River Bridge in Mottville, Michigan , the longest remaining camelback bridge in the state [ 1 ]
Looking down the length of the Ten Curves Road–Manistique River Bridge