This beautiful truss bridge is a remain of when the line was initially double tracked.
The bridge features a single Quadrangular Through Truss span, with riveted connections and M-Frame Portal Bracing. This span sits on concrete substructures.
It is similar to many other trusses along the line, although the other Boyer River bridges were replaced in the 1940s.
The current channel was cut in the late 1800s, likely as a diversion channel. An older channel ran a more southern course.
The bridge is also approached by modern concrete slab spans. These spans were likely added recently, as the bridge appears to have one modification.
Due to the flooding of the river and the area, it appears the bridge was raised up recently. This could explain the presence of the concrete approaches, and the piers that are former abutments.
Overall, the bridge appears to be in fair condition. The bridge can be accessed from a minimum maintenance road.
The author has ranked the bridge as being moderately significant, due to the truss design.
The photo above is an overview.
| Upstream | CN Boyer River Bridge #10 |
| Old Channel | CN Old Boyer River Bridge |
| Downstream | Confluence with Missouri River |