| 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. |
| 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 | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date / Builder or Contractor | Description | Thumbnail |
Blue Water Bridge
Original/Westbound Span | I-69 and I-94 / KH-402 Over St. Clair River | Port Huron and Sarnia (Point Edward): St. Clair County, Michigan and Lambton County, Ontario | Metal Riveted Cantilever Through Truss, Stationary | 1938 By: American Bridge Company of New York, New York | Designed by Modjeski and Masters, this monumental bridge features an extremely rare shape of cantilever and continues to carry unimaginable traffic. | 
|
Cameron Road Bridge
| Cameron Road Over Sydenham River | Rural: Lambton County, Ontario | Metal Riveted Double-Intersection Warren Through Truss, Stationary | 0 By: Unknown | A scenic rural truss bridge with a highly unusual modified double-intersection Warren truss configuration. | 
| X |
Christina Street Bridge
| Christina Street Over KH-402 | Sarnia: Lambton County, Ontario | Concrete Rigid-Frame, Stationary | 0 By: Unknown | Ontario elected to demolish this stunning historic gateway, one of the last of its kind on Ontario roads. | 
|
CR-79 Bridge
| CR-79 Over Sydenham River | Rural: Lambton County, Ontario | Metal Riveted Camelback Through Truss, Stationary | 1957 By: Unknown | A beautiful and relatively young massive steel through truss bridge. | 
|
Holt Line Bridge
| Holt Line Over North Branch Sydenham River | Rural: Lambton County, Ontario | Metal Riveted Pennsylvania Through Truss, Stationary | 0 By: Unknown | One of the most spectacular bridges in the county, both rare and beautiful! | 
|
KH-21 Bridge
| KH-21 Over Ausable River Cut | Rural: Lambton County, Ontario | Metal Bolted Polygonal Warren Pony Truss, Stationary | 1963 By: Unknown | An example of late metal truss bridge construction, this bridge was restored. | 
|
Old Lakeshore Road Bridge
| Old Lakeshore Road Over Cull Drain (Perch Creek) | Sarnia: Lambton County, Ontario | Metal Riveted Polygonal Warren Pony Truss, Stationary | 1910 By: Unknown | A beautiful pony truss is complimented by Lake Huron in the background, forming a unique, breathtaking scene. | 
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Pretty Road Bridge
| Pretty Road Over Black Creek | Rural: Lambton County, Ontario | Metal Riveted Warren Pony Truss, Stationary | 0 By: Unknown | Appropriately, this is a pretty little bridge on Pretty Road! | 
|
St. Clair Parkway Bridge
| St. Clair Parkway (CR-33) Over Clay Creek | Rural: Lambton County, Ontario | Concrete Rigid-Frame, Stationary | 1965 By: Unknown | This bridge is a good representation of Ontario's frequently built concrete rigid-frame bridge design. | 
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Stanley Line Bridge
| Stanley Line Over Bear Creek | Rural: Lambton County, Ontario | Metal Riveted Warren Pony Truss, Stationary | 0 By: Unknown | A classic Warren pony truss with riveted connections beautifies an agricultural landscape in Ontario. | 
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Warwick Bridge
| London Road (CR-7) Over Bear Creek | Warwick: Lambton County, Ontario | Concrete Rainbow Through Arch, Stationary | 1931 By: Unknown | This graceful rainbow arch bridge was restored. | 
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Whitebread Line Drain Bridge
| St. Clair Parkway (CR-33) Over Whitebread Line Drain | Rural: Lambton County, Ontario | Concrete Rigid-Frame, Stationary | 0 By: Unknown | A small rigid-frame bridge provides beauty and interest to a scenic route. | 
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