Fromberg Concrete Arch Bridge

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]

Fromberg Concrete Arch Bridge
1980 HAER photo
LocationRiver St. over the Clarks Fork of the Yellowstone River, Fromberg, Montana
Coordinates45°23′31″N 108°53′39″W
Arealess than one acre
Built1914
Built byBeley Construction Co.
ArchitectC.A. Gibson
Architectural styleConcrete arch bridge
MPSFromberg MPS
NRHP reference No.92001790[1]
Added to NRHPJanuary 28, 1993

It brings River St. over the Clarks Fork of the Yellowstone River.[1]

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]

References


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