This is a very unusual bridge because of its "humpback" shape. Both the deck and the truss share the same humpback or arched shape to them. The design of the bridge would have increased clearance for boats, while also eliminating the need for a long approach ramp leading up to the bridge.
The humped shape is extremely rare among truss bridges, especially when the hump is all within a single span, not over several non-humpback spans like the Waubaushene Bridge.
This bridge is also noted for being built by what is today a little-known bridge builder, Western Bridge and Equipment of Chatham, Ontario.
The bridge has been heavily repaired over the years, and numerous rivets have been replaced with bolts, and additional steel has been bolted onto the bridge for added strength. Despite alteration, the bridge retains the unusual humpback design and as such should be considered a noteworthy heritage bridge.
A 1914 construction date was provided by the Dorset Community Partnership Group who indicated that this bridge was built to accommodate higher waters from construction of a dam built at the same time. However, this sheet from the 1908 Annual Department of Public Works shows a contract for $3,480 in 1907 entered into with Western Bridge and Equipment of Chatham, Ontario to supply and erect steel superstructure of a bridge over the "Burnt River" in the Village of Dorset between Districts of Muskoka and Haliburton. It is therefore possible that this truss dates to 1907-1908 and that it was simply raised (perhaps requiring replacement or substantial alteration of the concrete piers and abutments) in 1914.
Thanks to Fred Heinzler, the Dorset Community Partnership Group, and the community run, volunteer sponsored website www.DorsetCanada.com for providing information and photos about this bridge.
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