| 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 |
108th Street Bridge
|
 | 108th Street Over Thornapple River | Rural: Barry County, Michigan and Kent County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 150 ft Main Span Length: 74.8 ft Roadway Width: 40 ft Main Spans: 2 |
1932 By: Willits Brothers Construction Company of Bay City, Michigan and Michigan State Highway Department | A rare transition or prototype bridge, this may be one of the oldest remaining examples of a bridge in Michigan with R4 style railings. | 
| ! |
Charlton Park Road Bridge
|
 | Charlton Park Road Over Thornapple River | Rural: Barry County, Michigan | Pre-Stressed Concrete Adjacent Box Beam, Fixed |
Total Length: 134.8 ft Main Span Length: 45 ft Roadway Width: 26 ft Main Spans: 3 |
1956 By: Gene Fewell | This bridge is an extremely early surviving prestressed concrete bridge in Michigan. | 
| X |
Michigan Avenue Bridge
|
 | Michigan Avenue Over Thornapple River | Hastings: Barry County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 97.8 ft Main Span Length: 48 ft Roadway Width: 40 ft Main Spans: 2 |
1949 By: Ruckman-Hansen, Inc. of Fort Wayne, Indiana and Foster Engineering Company | This attractive bridge was noted for its unusually high level of uncommon aesthetic details. | 
| ! |
Middleville Bridge
|
| Main Street Over Thornapple River | Middleville: Barry County, Michigan | Metal Stringer (Multi-Beam), Fixed |
Total Length: 141.7 ft Main Span Length: 70.9 ft Roadway Width: 39 ft Main Spans: 2 |
1929 By: Lyons Construction Company and Michigan State Highway Department | Functioning as a gateway to downtown, Middleville appears to have tried to keep their historic bridge well maintained. | 
|
Sponable Bridge
McKeowen Road Bridge |
 | McKeowen Road (Old Alignment) Over Thornapple River | Rural: Barry County, Michigan | Metal 8 Panel Pin-Connected Pratt Through Truss, Fixed |
Total Length: 121 ft Main Span Length: 119 ft Roadway Width: 16.4 ft Main Spans: 1 |
1903 By: Massillon Bridge Company of Massillon, Ohio | The last truss bridge in Barry County was restored and a park developed around it. | 
|
Thornapple River Private Bridge
|
 | Private Access Over Thornapple River | Rural: Barry County, Michigan | Metal 5 Panel Rivet-Connected Pratt Half-Hip Pony Truss, Fixed | Main Spans: 1 | By: Unknown | This bridge is a beautiful secret that is hidden away within private property. | 
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