| 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 |
Big Four Bridge
|
 | Railroad (CSX) Over Great Miami River, Main Avenue, and Childrens Home Road (CR-41) | Sidney: Shelby County, Ohio | Concrete Open Spandrel Deck Arch, Fixed |
Total Length: 780 ft Main Span Length: 140 ft Roadway Width: 29 ft Main Spans: 5 |
1923 By: Walsh Construction Company | This gargantuan monumental bridge is so massive that it dwarfs the multi-span through truss next to it. | 
|
Gearhart Road Bridge
Childrens Home Road Bridge |
 | Gearhart Road (Old Alignment) Over Great Miami River | Sidney: Shelby County, Ohio | Metal 7 Panel Pin-Connected Pratt Through Truss, Fixed and Approach Spans: Metal 10 Panel Rivet-Connected Warren Pony Truss, Fixed |
Total Length: 345 ft Main Span Length: 120 ft Roadway Width: 18 ft Main Spans: 2 |
1906 By: Unknown | Situated next to the Big Four Bridge, and bypassed by a new bridge, this abandoned multi-span through truss bridge is a beauty, and has an unusual pony truss approach. | 
| X |
Johnson Slagle Road Bridge
Port Jefferson Bridge |
 | Johnson Slagle Road (CR-32) Over Great Miami River | Port Jefferson: Shelby County, Ohio | Metal 8 Panel Pin-Connected Pratt Through Truss, Fixed |
Total Length: 188 ft Main Span Length: 99 ft Roadway Width: 16 ft Main Spans: 2 |
1882 By: Morse Bridge Company of Youngstown, Ohio | An impressive and rare two-span bridge featured the attractive, unique designs of its builder. | 
| X |
North Street Bridge
|
 | North Street (OH-47) Over Great Miami River | Sidney: Shelby County, Ohio | Concrete Closed Spandrel Deck Arch, Fixed |
Total Length: 350 ft Main Span Length: 96 ft Roadway Width: 30 ft Main Spans: 3 |
1931 By: D. H. Overman | A good example of a multi-span concrete arch bridge in Ohio. | 
| X |
Sulpher Heights Hill Road Bridge
River Road Bridge |
| Sulpher Heights Hill Road (River Road) Over Great Miami River | Rural: Shelby County, Ohio | Metal 9 Panel Pin-Connected Pratt Through Truss, Fixed |
Total Length: 233 ft Main Span Length: 114 ft Roadway Width: 17.4 ft Main Spans: 2 |
1886 By: Morse Bridge Company of Youngstown, Ohio | A scenic two-span through truss bridge with decorative portal bracing. | 
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