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CR-489 Bridge

   


CR-489 Bridge

Primary Photographer(s): Courtesy Michigan Department of Transportation

Bridge Documented: June 2009
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Key Facts

Facility Carried / Feature Intersected
CR-489 Over Rainy River
Location
Rural: Presque Isle County, Michigan
Construction Date and Builder / Engineer
1939 By Builder/Contractor: Frank and Stiehl of Au Gres, Michigan

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
70 Feet (21.3 Meters)
Structure Length
109 Feet (33.2 Meters)
Roadway Width
23 Feet (7 Meters)
Spans
3 Main Span(s)
NBI Number
71200014000B010

Historic Significance Rating (HSR)

Bridge Documentation

This Bridge's Future Is At Risk!

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

This bridge's owner has applied for 2013 Local Bridge Program demolition and replacement funding!

This bridge is one of the larger examples of a bridge that displays an uncommon railing design standard in Michigan. The design, consisting of panels of riveted vertical bars was frequently used on the small number of metal truss bridges built to Michigan State Highway Department designs. It was also used on a number of metal stringer bridges in the state, largely between 1930 and 1940. Because Michigan's far more common R4 railing standard was begun in 1932, this railing design appears to have simply been an alternative railing option that was available during the 1930s. However by the 1940s the railing appears to have no longer been used, likely abandoned in favor of the R4 standard railing.

This particular bridge retains excellent historic integrity with no noteworthy alterations to the railing or superstructure. Its railings terminate in concrete end posts that have styling similar to that used for concrete posts on bridges with the R4 standard. The bridge has steel pile bents and concrete abutments.

The county road commission wants to demolish and replace this bridge with an ugly slab of pre-stressed concrete. They have applied multiple times to receive Local Bridge Program funding from MDOT. However, MDOT seems reluctant to provide replacement funding, suggesting they feel that rehabilitation would be a better course of action. The condition of the bridge clearly suggests that rehabilitation is more appropriate, and would cost taxpayers much less money.

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Photos and Videos: CR-489 Bridge

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