Cottonwood Creek Bridge (Ismay, Montana)

United States historic place


Cottonwood Creek Bridge
U.S. National Register of Historic Places

Bridge in September 2016
Cottonwood Creek BridgeShow map of MontanaCottonwood Creek BridgeShow map of the United States
Location	Milepost 2.2 on Montana Secondary Highway 320 (Ismay Road), Fallon County, Montana, near Ismay
Coordinates	46°27′24″N 104°47′19″W / 46.456637°N 104.788596°W / 46.456637; -104.788596
Area	1 acre (0.40 ha)
Built by	Emil Prahl and Henry Sawtell
Architect	Montana Highway Department
MPS	Montana's Historic Timber Stringer Bridges, 1915-1960
NRHP reference No.	14000079
Added to NRHP	March 14, 2015

The Cottonwood Creek Bridge is a bridge in Fallon County, Montana near the town of Ismay, built in 1934. It was listed on the National Register of Historic Places in 2014. From 1926 to 1941, at least 1,242 timber stringer bridges were built in Montana; this is one of very few intact surviving bridges.

It was listed as part of a statewide study of timber stringer bridges.

It was built by Emil Prahl and Henry Sawtell, both of Miles City, to the standardized plans provided by the Montana Highway Department, a predecessor agency to the Montana Department of Transportation. It is a five-span continuous treated timber stringer bridge which is 95 feet (29 m) long and 20 feet (6.1 m) wide with a roadway width of 19 feet (5.8 m). Its ends are supported by timber abutments and wingwalls braced with wood pilings. The spans are between four sets of treated timber pile bents made of Douglas fir.

References

^ "Cottonwood Creek Bridge". National Park Service.
Jon Axline (January 5, 2014). "National Register of Historic Places Multiple Property Documentation: Montana's Historic Timber Stringer Bridges, 1915-1960" (PDF). National Park Service. Retrieved May 23, 2017.
Jon Axline (May 24, 2013). "National Register of Historic Places Inventory/Nomination: Cottonwood Creek Bridge / 24FA0231/MDT Identification No. S00320002+02001" (PDF). National Park Service. Retrieved May 23, 2017. With seven photos from 2013.

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