Garrison Bridge, Spanning Clark Fork River at Sawmill Road, Garrison, Powell County, MT

Significance: The bridge was associated with the development of the community of Garrison as an important railroad junction and division point on the Northern Pacific Railway. The bridge provided a vehicular connection between the communities of Garrison and Deer Lodge and was a component of the Yellowstone Trail, an early interstate highway that connected Minneapolis and Seattle. The bridge later became a part of U.S. Highway 10, the successor to the Yellowstone Trail. The bridge is an excellent example of the classic pin-connected Pratt through truss, a bridge type common to Montana between 1892 and 1915. The bridge is also located on the original roadway alignment, providing an example of roadway standards of the early 20th century.
Survey number: HAER MT-116
Building/structure dates: 1912 Initial Construction