The Fromberg Concrete Arch Bridge, in Fromberg, Montana, was built in 1914. It was listed on the National Register of Historic Places in 1993.[1] It carries River Street over the Clarks Fork Yellowstone River.[1]
Fromberg Concrete Arch Bridge | |
 1980 HAER photo | |
   | |
| Location | River Street over Clarks Fork Yellowstone River, Fromberg, Montana |
|---|---|
| Coordinates | 45°23′30″N 108°53′42″W / 45.39167°N 108.89500°W |
| Area | less than one acre |
| Built | 1914 |
| Built by | Beley Construction Company |
| Architect | C. A. Gibson |
| Architectural style | Concrete arch bridge |
| MPS | Fromberg MPS |
| NRHP reference No. | 92001790[1] |
| Added to NRHP | January 28, 1993 |
It is a three-span concrete deck arch bridge designed by Carbon County, Montana, surveyor C. A. Gibson and was "quite advanced for the time": it has "flattened parabolic arches with a rise to span ratio of 1 to 7." At its completion it was the largest concrete bridge in the state.[2]
In 1993 it was the oldest multi-arch concrete bridge surviving in the state.[2]
See also
editReferences
edit- ^ a b c "National Register Information System". National Register of Historic Places. National Park Service. November 2, 2013.
- ^ a b Johnson, Lon (August 1992). "National Register of Historic Places Registration: Fromberg Concrete Arch Bridge". National Park Service. Retrieved September 8, 2019. With accompanying three photos from 1992 and one from c. 1914
External links
edit- Historic American Engineering Record (HAER) No. MT-7, "Fromberg Bridge, Spanning Clarks Fork of Yellowstone River on East River Street, Fromberg, Carbon County, MT", 20 photos, 1 color transparency, 21 data pages, 3 photo caption pages