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Misner Dam Bridge

Misner Dam Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: March 20, 2012

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Facility Carried / Feature Intersected
Silver Lake Drive (Patterson Street, CR-5) Over Lynn River
Port Dover: Norfolk County, Ontario: Canada
Structure Type
Metal 4 Panel Rivet-Connected Warren Pony Truss, Fixed and Approach Spans: Concrete T-Beam, Fixed
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
Not Available
Structure Length
Not Available
Roadway Width
Not Available
1 Main Span(s) and 3 Approach Span(s)
Inventory Number
Not Applicable

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge's future is at risk!

Bridge Status: This heritage bridge is at risk for demolition and replacement by Norfolk County!

This noteworthy structure is actually a dam which includes a bridge as an integral part of the structure. The bridge is a riveted pony truss bridge with three concrete t-beam approach spans. The varying span lengths and types of the bridge appear to be a result of accommodating the dam functions of the structure. The bridge appears to have been originally constructed for vehicular traffic, before being bypassed by a modern bridge that stands next to the bridge. After that, the bridge was serving pedestrian traffic. Now, the bridge has been closed to traffic due to deterioration.

The dam has been the subject of controversy, since some groups want the dam removed to restore the original, nature configuration of the creek, while others want the deteriorating dam to be repaired to preserve the Silver Lake which it has formed, and is used recreationally today. At this time, it appears the dam will be repaired. However it appears that the county wants to demolish the heritage bridge. While the structure is certainly deteriorated, the truss is not beyond repair. The bottom chord is severely deteriorated due to dirt that has been allowed to accumulate on it, trapping moisture and causing deterioration. However, the bottom chord could be replicated. The overall truss retains enough integrity that it can very likely be restored. It is hoped that the truss will not be demolished, but plans will be changed to restore the bridge, particularly the truss span, which is the most significant component.


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