{{Use American English|date=July 2025}} {{Use mdy dates|date=August 2023}} {{Infobox NRHP | name = Scenic Bridge | nrhp_type = | image=Scenic Bridge, Spanning Clark Fork at Old Highway 10, Tarkio vicinity (Mineral County, Montana).jpg | caption = | location = Milepost 0 on Old U.S. Route 10 West, about {{Convert|4|mi}} east of Tarkio, Montana | coordinates = {{coord|47|01|12.4|N|114|39|25.5|W|display=inline,title,source:NRIS2010a}} | locmapin = Montana#USA | built = 1928 | builder = William P. Roscoe Company | architecture = Pratt deck truss | added = January 4, 2010 | area = {{Convert|2|acre|ha}} | mpsub = Montana's Historic Steel Truss Bridges | refnum =09001183<ref name="nris">{{NRISref|version=2010a}}</ref> }} The '''Scenic Bridge''' crossing Clark Fork River about {{Convert|4|mi}} east of Tarkio in Mineral County, Montana, was built in 1928. It is located at Milepost 0 on Old U.S. Route 10 West. The bridge has also been denoted '''24MN304''' and '''MDT No. L31012000+08'''.<ref name="nrhpdoc"/> It was listed on the National Register of Historic Places in 2010.<ref name="nris"/>
The bridge is a riveted Pratt deck truss bridge. It has three main spans upon reinforced concrete abutments and piers. The bridge is {{convert|421|ft|m}} long in total, with four {{convert|19|ft|m|adj=on}} approach spans, two {{convert|77|ft|m|adj=on}} deck truss spans, and a {{convert|191|ft|m|adj=on}} deck truss main span. It is {{convert|25|ft|m}} wide, supporting a {{convert|24|ft|m|adj=on}} roadway.<ref name="nrhpdoc">{{cite web|url={{NRHP url|id=09001183}}|title=National Register of Historic Places Registration: Scenic Bridge / 24MN304, MDT No. L31012000+08 |publisher=National Park Service|author=Jon Axline |date=May 13, 2009 |access-date=September 6, 2017}}</ref>
This Pratt deck truss design is visually pleasing and rare. It was chosen by state staff for relatively rare circumstances during 1928 to 1932, after which a version of a Warren truss design was used.<ref name="nrhpdoc"/>
==See also== *List of bridges documented by the Historic American Engineering Record in Montana *List of bridges on the National Register of Historic Places in Montana
==References== {{Reflist}}
==External links== *{{HAER |survey=MT-122 |id=mt0450 |title=Scenic Bridge, Spanning Clark Fork at Old Highway 10, Tarkio, Mineral County, MT |photos=10 |data=18 |cap=91}}
{{NRHP in Mineral County, Montana}}
Category:Road bridges on the National Register of Historic Places in Montana Category:Bridges completed in 1928 Category:Steel bridges in the United States Category:Pratt truss bridges in the United States Category:Historic American Engineering Record in Montana Category:National Register of Historic Places in Mineral County, Montana
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