| 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 |
Boundary Bridge 44
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 | Simcoe Street Over Talbot River (Trent-Severn Waterway) | Rural: Kawartha Lakes City, Ontario and Simcoe County, Ontario | Metal 10 Panel Rivet-Connected Warren Pony Truss, Movable: Swing (Center Bearing Center Pier) | Main Spans: 1 | By: Unknown | This bridge is an outstanding and increasingly rare surviving example of a riveted swing bridge on this heritage waterway. | 
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Canal Lake Bridge
Hole in the Wall Bridge |
 | Centennial Park Road (Highway 33) Over Canal Lake (Trent-Severn Waterway) | Rural: Kawartha Lakes City, Ontario | Concrete Closed Spandrel Deck Arch, Fixed |
Main Span Length: 60 ft Main Spans: 1 |
1905 By: Unknown and Department of Railways and Canals | This National Historic Site of Canada is the oldest known concrete arch in Canada and an exceedingly rare Melan arch bridge. | 
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