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NP - Yellowstone River Bridge #4 (Old)

Stillwater County, Montana

Map 

Description 

All three spans relocated to a Chehalis-South Bend line in Washington State. Two still extant. Information from NPRHA.org Online Collection

Facts 

Overview
Pratt through truss bridge over Yellowstone River on Northern Pacific Railroad
Location
Stillwater County, Montana
Status
Replaced by a new bridge
History
Built 1896, Replaced and portions relocated 1918
Builders
- A & P Roberts Co. of Pencoyd, Pennsylvania (Contractor)
- Pencoyd Iron Works of Pencoyd, Pennsylvania (Fabricator) [also known as A & P Roberts Co.]
Railroad
- Northern Pacific Railway (NP)
Design
Pratt through truss
Dimensions
Length of largest span: 155.0 ft.
Total length: 465.0 ft.
Approximate latitude, longitude
+45.68683, -109.43850   (decimal degrees)
45°41'13" N, 109°26'19" W   (degrees°minutes'seconds")
Approximate UTM coordinates
12/621590/5060438 (zone/easting/northing)
Inventory number
BH 87964 (Bridgehunter.com ID)

Categories 

19th Century (9,384)
6-panel truss (900)
A & P Roberts Co. (45)
Built 1896 (303)
Built during 1890s (3,360)
Lost (31,071)
Lost 1918 (45)
Lost during 1910s (796)
Montana (852)
Northern Pacific Railway (457)
Owned by railroad (13,976)
Pencoyd Iron Works (46)
 Pin-connected (5,322)
Pratt through truss (6,356)
Pratt truss (10,760)
Railroad (16,920)
Replaced by new bridge (21,150)
Span length 125-175 feet (4,568)
Stillwater County, Montana (20)
Through truss (18,516)
Total length 250-500 feet (5,680)
Truss (37,697)
Yellowstone River (49)

Update Log 

  • January 30, 2020: Added by John Marvig

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