News that the Michigan Department of Transportation is testing drones for bridge inspection reminded me that I was asked to share more of were “bridges other than than the Mackinac Bridge.”
The Sixth Street Bridge, with its long 544 foot length excellent physical condition, is a fitting tribute to its builder, the Massillon Bridge Company of Massillon Ohio. Constructed in 1886, this bridge is made of wrought iron. This bridge is one of the most important historic bridges in the entire state of Michigan, since it is the longest pin-connected highway truss in the state. Also, Michigan only has a few truss bridges that are more than one span in length, and most of those are two spans. A four span bridge in Michigan is thus extremely rare for its unusually long length, for Michigan. The bridge is also significant for the length of its individual spans. The bridge has three spans that are 154 feet in length. This is a very long span length for a pin-connected Pratt truss, and is among the longest in Michigan.
…Construction of the bridge began in 1885, when the piers and abutments were constructed. These, with approaches, cost $11,084.95. The wrought iron truss superstructure was erected in 1886 by the Massillon Bridge Company of Massillon, Ohio, costing $20,281. This made the total cost of the bridge $31,365.95.
Read on for much more.
More bridges on Michigan in Pictures.