Mottville Bridge

Mottville Bridge (HM17UN)

Location: White Pigeon, MI 49099 St Joseph County
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Country: United States of America
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N 41° 48.029', W 85° 45.443'

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(Front Side)
The Great Sauk Trail, which connected Detroit, Chicago and Green Bay, Wisconsin, crossed the St. Joseph River at a shallow spot in this vicinity. Responding to the westward migration of pioneers, the federal government surveyed the trail and converted it into the Chicago Road (presently U.S. 12) in 1825. The first Chicago Road bridge to cross the river near Mottville was a substantial timber structure constructed in 1833-34 by contractor Hart L. Stewart. A pile-supported bridge replaced it in 1845. In 1867, Mahlon Thompson and Joseph Miller built a covered Burr arch truss. The ruins of its stone-block abutments are visible upstream from here. This three-span camelback bridge was built in 1922. In 1990 U.S. 12 was rerouted over a new bridge. The camelback bridge is now used for foot traffic.

(Back Side)
Constructed in 1922, this three-span, 270-foot-long bridge is the longest Michigan example of a reinforced concrete camelback bridge. These bridges are found primarily in Michigan and Ontario, Canada, and the Mottville Bridge is an excellent example of this design. It was built by contractors Smith and Nichols of Hastings under the direction of State Bridge Engineer C.A. Melick. The Michigan State Highway Department pioneered the use of standardized designs for concrete bridges. By the early 1920s the department had established standardized plans for camelback spans of 50, 60, 70, 75 and 90 feet. This bridge contains three identical 90-foot spans. It was preserved as an engineering landmark by the Michigan Department of Transportation when the present U.S. 12 bridge was erected.
HM NumberHM17UN
Series This marker is part of the Michigan: Michigan Historical Commission series
Marker NumberS576A
Year Placed1990
Placed ByBureau of History, Michigan Department of State
Marker ConditionNo reports yet
Date Added Monday, September 1st, 2014 at 6:45am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)16T E 603232 N 4628370
Decimal Degrees41.80048333, -85.75738333
Degrees and Decimal MinutesN 41° 48.029', W 85° 45.443'
Degrees, Minutes and Seconds41° 48' 1.74" N, 85° 45' 26.58" W
Driving DirectionsGoogle Maps
Area Code(s)269
Closest Postal AddressAt or near 201-299 W Chicago Rd, White Pigeon MI 49099, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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