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3 votes

Calypso Bridge

Prairie County, Montana
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Photos 

General Elevation

Photo taken by Jet Lowe for the Historic American Engineering Record

View photos at Library of Congress

Map 

Facts 

Overview
Parker through truss bridge over Yellowstone river on Milwakuee Road
Location
Prairie County, Montana
Status
Open to traffic
History
Built 1907
Builder
- American Bridge Co. of New York
Design
pinned
Also called
Milwaukee Road Bridge
Approximate latitude, longitude
+46.77952, -105.41166   (decimal degrees)
46°46'46" N, 105°24'42" W   (degrees°minutes'seconds")
Approximate UTM coordinates
13/468574/5180745 (zone/easting/northing)
USGS topographic map
Calypso
Inventory number
BH 47878 (Bridgehunter.com ID)

Categories 

A-frame portal (232)
American Bridge Co. (449)
Built 1907 (375)
Built during 1900s (4,246)
Chicago, Milwaukee, St. Paul & Pacific Railroad (283)
Montana (370)
Open (28,310)
Open to Pedestrians (2,084)
 Parker through truss (947)
Parker truss (1,267)
Prairie County, Montana (7)
Rail-to-road (90)
Railroad (4,070)
Through truss (9,205)
Truss (23,568)
Yellowstone River (26)

Update Log 

  • March 10, 2012: Updated by Craig Philpott: refined location
  • January 22, 2012: HAER photos posted by J.P.
  • January 29, 2011: Added by J.P.

Sources 

  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • HAER MT-26 - Calipso Bridge, Spanning Yellowstone River, Terry, Prairie County, MT
  • Craig Philpott - cphilpott [at] puc [dot] edu
  • Luke Harden - lukemh9 [at] gmail [dot] com

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