Cottonwood Creek Bridge
The Cottonwood Creek Bridge consists of one contributing resource. The bridge is a five-span treated timber stringer structure constructed by Emil Prahl and Henry Sawtell in 1934 from standardized plans furnished by the Montana Highway Department. It is located on Secondary Highway 320 (Ismay Road) approximately three miles south of the City of Ismay in Fallon County. The bridge measures 95 feet long and 20 feet wide. The intact double rail guardrails are standard to timber stringer bridges designed by the Montana Highway Department between 1915 and 1960. The bridge is located in a rural setting and functions as a stream crossing on a farm- to-market road.
- Timber stringer bridge over Cottonwood Creek on S 320
- Fallon County, Montana
- Open to traffic
- Built 1934
- - Emil Prahl
- Henry Sawtell
- Timber stringer
Length of largest span: 19.0 ft.
Total length: 95.5 ft.
Deck width: 19.0 ft.
Posted to the National Register of Historic Places on March 14, 2014
- Approximate latitude, longitude
- +46.45664, -104.78858 (decimal degrees)
46°27'24" N, 104°47'19" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 13/516235/5144806 (zone/easting/northing)
- Quadrangle map:
- Ismay South
- Inventory numbers
- NRHP 14000079 (National Register of Historic Places reference number)
BH 60603 (Bridgehunter.com ID)
- Inspection (as of 10/2014)
- Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Sufficiency rating: 72.8 (out of 100)
- Average daily traffic (as of 2009)
- August 9, 2014: Photo imported by Dave King
- April 5, 2014: Added by K. A. Erickson