| 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 |
Brighton Road Bridge
|
 | Brighton Road (CR-64) Over Murray Canal (Trent-Severn Waterway) | Rural: Northumberland County, Ontario | Metal Rivet-Connected Polygonal Warren Pony Truss, Movable: Swing (Center Pier) | Main Spans: 1 | 1947 By: Central Bridge Company of Tenton, Ontario | This is the last remaining heritage highway bridge on the Murray canal. | 
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Carrying Place Bridge
|
 | Loyalist Parkway (CR-33) Over Murray Canal (Trent-Severn Waterway) | Carrying Place: Northumberland County, Ontario | Metal Non-Historic, Movable: Swing (Center Pier) | Main Spans: 1 | By: Unknown | A heritage bridge was demolished and replaced with this bridge that immitates the heritage bridge. | 
|
Hamilton Hope Boundary Road Bridge
|
 | Hamilton Hope Boundary Road Over KH-401 | Port Hope: Northumberland County, Ontario | Concrete Slab, Fixed | Main Spans: 3 | 1960 By: Unknown | This bridge is noted for its attractive arched superstructure. | 
| ! |
Hastings Bridge
|
 | Bridge Street (CR-45) Over Trent River (Trent-Severn Waterway) | Hastings: Northumberland County, Ontario | Metal Through Girder, Movable: Swing (Center Bearing Bobtail) | Main Spans: 1 | By: Unknown | One of only a few surviving unaltered heritage swing bridges on the Trent-Severn Waterway. | 
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