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Swan Creek Road Bridge #2

Swan Creek Road Bridge #2

Primary Photographer(s): Nathan Holth

Bridge Documented: 2006

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Key Facts

Facility Carried / Feature Intersected
Swan Creek Road (Abandoned Old Alignment) Over Beaver Creek
Rural: Saginaw County, Michigan: United States
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
49 Feet (14.9 Meters)
Structure Length
51 Feet (15.5 Meters)
Roadway Width
15.7 Feet (4.79 Meters)
1 Main Span(s)
NBI Number

Historic Significance Rating (HSR)
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Bridge Documentation

Although this bridge appears on the official 1995 Michigan Historic Bridge Inventory, this and the other bridge, Swan Creek Bridge #1, which is near this bridge have since been sold to the Twin Bridges Golf Course. Although one would assume this golf course was named after these bridges, it should be noted that neither of these bridges are actually on the course itself, which is south of these bridges, nor have they been preserved. These bridges sit in their original locations on the old alignment of Swan Creek Road. They and the roadway they are on is today private property and are not accessible to the public. These bridges would make a fine addition to any golf course, especially one named "Twin Bridges." However, these instead bridges sit rotting away and inaccessible.

In truth, these bridges are not really twins, and in fact are quite different. The 1995 Michigan Historic Bridge Inventory shows two Swan Creek Road truss bridges, one built in 1885 the other in 1887. Swan Creek Road Bridge #1 is more of a classic small Warren pony truss with riveted connections. Swan Creek Road Bridge #2 is an unusually short Pratt truss with riveted connections, and it is clearly a more unusual structure. The inventory did not specify which bridge was the 1885 bridge and which was the 1887 bridge. The dates are questionable anyway, since these bridges, with riveted connections, no unusual design details, and traditionally composed built-up beams look more like post-1900 bridges. Also note that although these bridges are on Swan Creek Road, they actually cross Beaver Creek and Beaver Creek Branch.

This is a four panel Pratt pony truss with riveted connections. It is unusual because although it is short, the height of the trusses is relatively high, giving the bridge an odd-looking shape. It also is somewhat unusual to see a full-slope design for a Pratt pony truss of this length. Another unusual design feature is the lattice guardrails, which are slightly different than the standard lattice. The bridge features a jack-arch deck, consisting of a curved corrugated steel base, with concrete poured above. The bridge sits on concrete abutments.


Photo Galleries and Videos: Swan Creek Road Bridge #2

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