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| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date and Builder/Engineer | |
|---|---|---|---|---|---|
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20 Mile Road Bridge
| Bridge Park Trail Over Dickinson Creek | Rural: Calhoun County, Michigan | Metal 5 Panel Rivet-Connected Pratt Full-Slope Pony Truss, Fixed | 1906 By Builder/Contractor: Unknown |
| Technical Facts |
| Main Span Length | Structure Length | Roadway Width | Main Spans |
| 64 Feet (19.5 Meters) | 64 Feet (19.5 Meters) | 15.4 Feet (4.7 Meters) | 1 |
This bridge was the second bridge to be erected in the Calhoun
County Bridge Park. The bridge is unusual because it is a Pratt truss
configuration yet has riveted connections. Riveted connection Pratt trusses are
common on Michigan's railroads, but not on Michigan's highways. According to Historic American Engineering Record (HAER), the bridge was built in 1907. HAER has a decent amount of info
on this bridge as well as photos of the bridge in its original location. The
bridge features a small, tight style of v-lacing on its verticals and diagonals
which are similar to that of the Indian Trail
Bridge, which will also eventually be at the bridge park.
Click on a thumbnail or gallery name below to visit that particular photo gallery. If videos are available, click on a video name to view and/or download that particular video.
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Bridge Photo-Documentation
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A collection of overview and detail photos. This photo gallery contains a combination of Original / Full Sized photos and Mobile/Smartphone Optimized (Reduced Size) photos. Alternatively, view this photo gallery using a popup slideshow viewer by clicking the link below.
Browse Gallery With Popup Viewer |
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