| 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 |
12th Line Bridge
|
 | 12th Line Over Grand River | Rural: Dufferin County, Ontario | Concrete Rainbow Through Arch, Fixed |
Total Length: 160 ft Main Span Length: 80 ft Main Spans: 2 |
1921 By: Unknown | This bridge is noted for its relatively long spans and skewed design. | 
|
13th Line Bridge
|
 | 13th Line Over Grand River | Rural: Dufferin County, Ontario | Metal 6 Panel Rivet-Connected Pratt Through Truss, Fixed | Main Spans: 1 | By: Hamilton Bridge Company of Hamilton, Ontario | This attractive heritage truss bridge compliments the scenic Grand River very nicely. | 
|
17 Sideroad Bridge
Happy Valley Bridge |
 | 17 Sideroad Over Pine River | Rural: Dufferin County, Ontario | Concrete Rainbow Through Arch, Fixed | Main Spans: 1 | By: Unknown | This is a small but attractive and unaltered concrete bowstring arch bridge. | 
|
5th Line Bridge
|
 | 5th Line Over Nottawasaga River | Rural: Dufferin County, Ontario | Metal 4 Panel Rivet-Connected Warren Pony Truss, Fixed | Main Spans: 1 | By: Unknown | This is a small pony truss a short distance off the main road on a dead-end road. | 
|
|---|
