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| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date and Builder/Engineer | |
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Turner Road Bridge
| Turner Road Over Grand River | Rural: Ionia County, Michigan | Metal 9 Panel Pin-Connected Parker Through Truss, Fixed | 1910 By Builder/Contractor: Wynkoop and McGormley of Toledo, Ohio |
| Technical Facts |
| Rehabilitation Date | Main Span Length | Structure Length | Roadway Width | Main Spans | NBI Number |
| 1969 | 202 Feet (61.5 Meters) | 208 Feet (63.4 Meters) | 19 Feet (5.8 Meters) | 1 | 34304H00028B010 |
There are only three through Parker truss bridges remaining in Michigan, and this is one. The other two are the Kent Street Bridge and the Upton Road Bridge. The Parker truss is a modification of the Pratt design, where the top chord was polygonal instead of constantly parallel to the bottom chord. This Turner Road bridge is similar, although not the same, as the somewhat nearby Kent Street Bridge. Turner Road retains a higher degree of integrity and aesthetic beauty than Kent Street. The Turner Road Bridge was built by Wynkoop & McGormley of Toledo, Ohio the same firm that built the Kent Street Bridge three years earlier. They were agents of the Toledo-Massillon Bridge Company. The portal bracing is perhaps the most obvious difference in construction between Kent Street and Turner Street. They are the same design, but the Turner Road portal bracing is a bit smaller.
The Turner Road Bridge is pin connected, and has a concrete deck, which is deteriorating. The bridge sits on concrete abutments. Original lattice guardrails are present on the bridge. The bridge is comprised of nine panels. V-lacing on the bridge is extensive: on the vertical members, under the top chord, and on the sway bracing.
This bridge looks to be in decent structural condition, and it should be restored. However, after seeing what happened with the Kent Street Bridge, it is important to stipulate that the original railings be retained, and also that the bridge be restored here in its original, scenic location. Its location in a state game area makes it a great candidate for restoration, since it is already in a public park-like setting. Since it is one of only three remaining through Parker trusses, their statewide rarity is comparable to the overrated wooden covered bridges.
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Pre-2009 Photo-Documentation
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A collection of overview and detail photos taken before 2009. 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.
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Post-2009 Photo-Documentation
Original / Full Size Photos |
Additional overview and detail photos taken before 2009. For the best visual immersion and full detail, or for use as a desktop background, this gallery presents the photos for this bridge in the original digital camera resolution. |
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Post-2009 Photo-Documentation
Mobile Optimized Gallery |
Additional overview and detail photos taken after 2009. View the photos for this bridge in a reduced size which is useful for mobile/smartphone users, modem
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