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Old M-28 Rock River Bridge

Old M-28 Rock River Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: October 1, 2012

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Facility Carried / Feature Intersected
Old M-28 Over Rock River
Location
Rural: Baraga County, Michigan: United States
Construction Date and Builder / Engineer
1924 By Builder/Contractor: G. E. Warden Company of Eau Claire, Wisconsin and Engineer/Design: Michigan State Highway Department
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
57.7 Feet (17.6 Meters)
Structure Length
61.0 Feet (18.6 Meters)
Roadway Width
22 Feet (6.71 Meters)
Spans
1 Main Span(s)
Inventory Number
518

Historic Significance Rating (HSR)
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Bridge Documentation

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

Learn about Michigan's Unique Concrete Camelback Bridges

This bridge is  a remnant of this road's trunk line past. This road used to be M-28, but is today a very rural local road since M-28 was realigned to a new location. Perhaps a result of its rural location and light traffic thanks to the realignment, this bridge remains today in good condition. One of the nice aspects of this bridge, thanks again to its rural road and local usage, is that it does not have modern approach Armco style guardrails. In fact, it has no approach guardrail of any kind. Only hazard signs are present at the end posts. It is a nice chance to see this bridge design without unsightly modern  guardrails bolted into the sides of the girder end posts.

Information and Findings From Michigan Historic Bridge Inventory

Narrative Description

Crossing the Rock River in rural Covington Township, this medium-span concrete bridge carries Old M-28 about two miles east of the town of Covington. The structure is comprised of a single, 60-foot concrete through girder span, with arched ribs that rest on angled concrete brackets cantilevered from the concrete abutments. A series of concrete floor beams span between the two girders; these are cast integrally with the 22-foot-wide concrete deck. The arched girders feature typical MSHD detailing, with corbeled bulkheads and six panels recessed in the concrete spandrel walls. The Rock River Bridge is today in excellent condition, without alteration.

In 1923 engineers for the Michigan State Highway Department designed this medium-span concrete bridge from a standard plan that they had developed in the previous biennium. MSHD awarded a contract to build the bridge to the G.E. Warden Company of Eau Claire, Wisconsin. Warden completed the bridge sometime before July 1924 for a total cost of $14,638.04.

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Photo Galleries and Videos: Old M-28 Rock River Bridge

 

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Maps and Links: Old M-28 Rock River Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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