| 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 |
Durham Highway 2 Bridge
|
 | Railroad (Canadian Pacific) Over Durham Highway 2 (King Avenue) | Rural: Durham Region, Ontario | Concrete Closed Spandrel Deck Arch, Fixed | Main Spans: 1 | 1912 By: Unknown | This is a very old example of a concrete arch bridge in Ontario. | 
| X |
Front Street Bridge
|
 | Front Street Over KH-401 | Oshawa: Durham Region, Ontario | Concrete Rigid-Frame, Fixed | Main Spans: 2 | By: Unknown | Demolished in June 2011, this was the only one of three very old overpasses in Oshawa that retains its original railings. | 
|
Mill Street Bridge
|
 | Mill Street (RR-17) Over KH-401 | Newcastle: Durham Region, Ontario | Concrete Rigid-Frame, Fixed | Main Spans: 1 | 1958 By: Unknown | This bridge displays an uncommon appearance among surviving rigid frame overpass bridges. | 
|
Morgans Corners Road Bridge
|
 | Morgans Corners Road Over KH-401 | Clarington: Durham Region, Ontario | Concrete Rigid-Frame, Fixed | Main Spans: 1 | 1958 By: Unknown | An example of a less common Ontario rigid frame overpass design which visually has a smooth arch arch, but does not blend into the abutment like other rigid frame bridges. | 
| X |
Salem Road Railroad Overpass
|
 | Salem Road Over Railroad | Ajax: Durham Region, Ontario | Wood Stringer (Multi-Beam), Fixed | Main Spans: 6 | By: Unknown | A narrow wooden bridge was demolished as a result of urban sprawl. | 
|
Simcoe Street Bridge
|
 | Simcoe Street (CR-2) Over KH-401 | Oshawa: Durham Region, Ontario | Concrete Rigid-Frame, Fixed | Main Spans: 2 | 1941 By: Unknown | This bridge is one of a few extremely early expressway overpass bridges in Oshawa, and is recognized as a heritage bridge. | 
|
Talbot Road Bridge
|
 | Talbot Road (RR-51) Over Talbot River | Rural: Durham Region, Ontario and Simcoe County, Ontario | Concrete Rainbow Through Arch, Fixed |
Total Length: 72.2 ft Main Span Length: 71.2 ft Roadway Width: 24.6 ft Main Spans: 1 |
1920 By: Unknown | This bridge is an old and outstanding example of a provincial design concrete bowstring arch bridge. | 
|
|---|
