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Furnace Street Bridge

   


Furnace Street Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: November 26, 2005
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Key Facts

Facility Carried / Feature Intersected
Furnace Street Over River Raisin
Location
Manchester: Washtenaw County, Michigan
Construction Date and Builder / Engineer
By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
65 Feet (19.8 Meters)
Structure Length
65 Feet (19.8 Meters)
Roadway Width
16 Feet (4.9 Meters)
Spans
1 Main Span(s)
NBI Number
815414200026B01

Historic Significance Rating (HSR)

Bridge Documentation

This Bridge No Longer Exists!

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

This bridge is a five panel pin connected half-hip Pratt pony truss. There is v-lacing on the top chord. V-lacing is also on the verticals. The bridge is traditionally composed. The default 1900 date was given by the Historic Bridge Inventory, suggesting that a definite date could not be located. I would guess that this bridge is a pre-1900 bridge for sure, perhaps as old as the late 1880s. The bridge has the unusual alteration of having a series of parallel post-tension rods added under the bridge to hold it up. Additionally, supports were added at the hip verticals to give additional support. With all this support, the truss does little if anything to hold itself up. In this arrangement, the bridge has deteriorated severely, with widespread areas of complete section loss noted, particularly on the floor beams. The bridge has been fenced off all over with ugly cyclone fencing. The bridge as a result is not very attractive looking today. It is a very sad outcome for a beautiful historic bridge that should have been considered a local treasure to be preserved.

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