| Special Bridge Conditions Legend |
| ! | Confirmed demolition date within one year or an especially historic bridge that is threatened with demolition at any level. |
| X | The bridge has been confirmed demolished or collapsed. |
| S | The bridge has been dismantled or moved to an offsite location and is not currently available for public viewing. |
| L | Most or all of the original bridge material has been demolished and replaced, including historically significant elements, but some original parts of the bridge remain. |
| Note: This website cannot guarantee the current condition of any bridge on this website. Bridges lacking these icons should not necessarily be considered condition-free. |
| Bridge Name | HSR Rating | Facility Carried / Feature Intersected | Location | Structure Type | Structure Dimensions | Construction Date / Builder or Contractor | Description | Thumbnail |
Bismark Highway Bridge
|
 | Bismark Highway Over Sebewa Creek | Rural: Eaton County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 30.8 ft Main Span Length: 27 ft Roadway Width: 16.4 ft Main Spans: 1 |
1921 By: Unknown | A rare example of a steel stringer bridge with lattice railing. | 
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Cochran Road Bridge
|
 | Cochran Road (BL-69) Over Battle Creek River | Charlotte: Eaton County, Michigan | Concrete Closed Spandrel Deck Arch, Fixed |
Total Length: 45 ft Main Span Length: 45 ft Roadway Width: 27 ft Main Spans: 1 |
1921 By: E. C. Nolan and Son of Detroit, Michigan | This unusual bridge does not follow the usual state standard plan for its type. | 
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Grand Ledge Railroad Bridge
|
 | Railroad (CSX) Over Grand River | Grand Ledge: Eaton County, Michigan | Metal Rivet-Connected Pratt Deck Truss, Fixed |
Total Length: 466 ft Main Span Length: 120 ft Roadway Width: 10 ft Main Spans: 3 |
By: Unknown | One of the most impressive deck trusses in Michigan, this bridge spans the unusual sandstone cliffs that grace the edge of the river in this area. | 
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Ionia Road Bridge
|
 | Ionia Road Over Scipio Creek | Near Vermontville: Eaton County, Michigan | Concrete Slab, Fixed |
Total Length: 23 ft Main Span Length: 22 ft Roadway Width: 23 ft Main Spans: 1 |
1957 By: Fred H. Price and Company and Michigan State Highway Department | A good example of a tiny stringer bridge built in the mid-20th Century. | 
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Island Park Arch Bridge
|
 | Hamlin Street (Pedestrian Path) Over Grand River (West Channel Around Island) | Eaton Rapids: Eaton County, Michigan | Concrete Closed Spandrel Deck Arch, Fixed | Main Spans: 1 | By: Unknown | A small, quaint arch bridge provides access to an interesting park. | 
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Knight Street Bridge
|
 | Knight Street Over Grand River | Eaton Rapids: Eaton County, Michigan | Metal Pin and Hanger Stringer (Multi-Beam), Fixed |
Total Length: 165 ft Main Span Length: 68 ft Roadway Width: 24 ft Main Spans: 3 |
1955 By: Raff and Dexter of Lansing, Michigan and Michigan State Highway Department | A well maintained 1950s multi-span beam bridge. | 
| ! |
M-50 Little Thornapple River Bridge
|
 | M-50 (North Clinton Trail) Over Little Thornapple River | Rural: Eaton County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 35 ft Main Span Length: 35 ft Roadway Width: 40 ft Main Spans: 1 |
1931 By: Unknown and Michigan State Highway Department | This is a very small example of a Michigan stringer bridge with concrete balustrade railings. | 
| ! |
M-50 Thornapple River Bridge
|
 | M-50 (North Clinton Trail) Over Thornapple River | Rural: Eaton County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 54.8 ft Main Span Length: 54.8 ft Roadway Width: 54.8 ft Main Spans: 1 |
1931 By: Frank and Stiehl and Michigan State Highway Department | This bridge is an example of an attractive Michigan stringer design that features concrete encasement and concrete balustrade railings. | 
| ! |
M-50 Thornapple River Overflow Bridge
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| M-50 (North Clinton Trail) Over Thornapple River Overflow | Rural: Eaton County, Michigan | Concrete T-Beam, Fixed | Main Spans: 1 | 1931 By: Unknown and Michigan State Highway Department | A very short t-beam that has a distinctive railing design used in Michigan for short spans. | 
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Powers Highway Bridge
|
 | Powers Highway Over Battle Creek River | Rural: Eaton County, Michigan | Metal Rivet-Connected Double-Intersection Warren Pony Truss, Fixed |
Total Length: 28 ft Main Span Length: 25 ft Roadway Width: 16 ft Main Spans: 1 |
1910 By: Unknown | An extremely rare example of an unusual light-weight truss design used in the early 20th Century. | 
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Saginaw Highway Bridge
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| Saginaw Highway Over Sebewa Creek | Rural: Eaton County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 28 ft Main Span Length: 26 ft Roadway Width: 19.4 ft Main Spans: 1 |
1928 By: Unknown | A rare example of a steel stringer bridge with lattice railing. | 
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Spring Brook Bridge
|
 | Pedestrian Path Over Spring Brook | Eaton Rapids: Eaton County, Michigan | Concrete Closed Spandrel Deck Arch, Fixed | Main Spans: 1 | By: Unknown | A nice concrete arch bridge with interesting and unique guardrails. | 
|
State Street Bridge
Plains Road Bridge |
| State Street (Plains Road) Over Grand River | Eaton Rapids: Eaton County, Michigan | Concrete Continuous Curved T-Beam, Fixed |
Total Length: 170 ft Main Span Length: 68 ft Roadway Width: 24 ft Main Spans: 3 |
1948 By: B. H. Sargent of Grand Rapids, Michigan | This unusual 1940s bridge is a graceful curved t-beam that features MSHD truss style riveted railings. | 
|
Townline Brook Bridge
Bennett Park Bridge |
 | Private Drive Over Townline Brook | Rural: Eaton County, Michigan | Metal 6 Panel Pin-Connected Bowstring Pony Truss, Fixed | Main Spans: 1 | 1875 By: Wrought Iron Bridge Company of Canton, Ohio | This is the only 1870s bowstring in Michigan, a rare example of a plate and channel top chord bowstring. | 
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Vermontville Bridge
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| Ionia Road Over Thornapple River | Vermontville: Eaton County, Michigan | Metal Continuous Stringer (Multi-Beam), Fixed |
Total Length: 112 ft Main Span Length: 44 ft Roadway Width: 23 ft Main Spans: 3 |
1957 By: Fry Construction Company and Michigan State Highway Department | A good example of a continuous stringer bridge built in the mid-20th Century. | 
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Waverly Road Bridge
|
 | Waverly Road Over Grand River | Lansing: Ingham County, Michigan and Eaton County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 283.8 ft Main Span Length: 55.8 ft Roadway Width: 44 ft Main Spans: 5 |
1940 By: W. J. Storen Company | This relatively long Michigan stringer bridge was widened in 1966. | 
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