UP Bridge #1.27


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Name UP Bridge #1.27
Chicago Great Western Railway Bridge #379.12
Built By Chicago Great Western Railway
Currently Owned By Union Pacific Railroad
Superstructure Contractor Unknown
Length 56 Feet Total, 28 Foot Main Span
Width 1 Track
Height Above Ground 10 Feet (Estimated)
Superstructure Design Steel Stringer and Timber Pile Trestle
Substructure Design Timber Pile
Date Built 1927, Using a Span Fabricated c. 1910
Date Replaced 2021
Original Location Chicago Great Western Railway Bridge #429.24; Halbur, Iowa
Traffic Count 0 Trains/Day (Bridge has been Replaced)
Current Status Replaced by a new bridge
Chicago Great Western Railway Bridge Number 379.12 (Old #D-103 1/2)
Union Pacific Railroad Bridge Number 1.27
Significance Local Significance
Documentation Date 3/15/2019

In 1886, the Mason City & Fort Dodge Railroad (MC&FD) constructed 73 miles of new railroad, extending from Mason City, Iowa to Fort Dodge, Iowa.  In 1901, the MC&FD was leased by the Chicago Great Western Railway (CGW).  Between 1902 and 1903, the MC&FD constructed 133 miles of new railroad, extending from Fort Dodge, Iowa to Council Bluffs, Iowa.  The CGW would be reorganized as the Chicago Great Western Railroad in 1909, and maintained a lease of the MC&FD property.  The CGW had acquired and constructed a modest railroad network throughout Illinois, Iowa, Minnesota and Missouri; connecting major cities in these states.  The CGW was one of the smaller railroads in the area, and was late to develop lines.  As a result, the railroad never saw the fortunes of other railroads in the area.  This line served as a principal mainline for the CGW, serving agricultural industries and providing a connection to terminals at Omaha, Nebraska.  In the early 20th Century, the CGW was often surviving on razor-thin profit margins.  In 1940, the CGW entered bankruptcy, and was again reorganized as the Chicago Great Western Railway.  At this time, the MC&FD was formally merged into the CGW.  After the bankruptcy, the CGW became an innovative railroad, pioneering intermodal service and becoming one of the first railroads to completely switch to diesel locomotives.  A capital improvement program was launched in 1949, which sought to rebuild and rehabilitate deteriorated infrastructure.  

In 1953, the Chicago, Rock Island & Pacific Railroad (Rock Island) began using a segment between McClelland, Iowa and Council Bluffs.  In 1968, the CGW was purchased by the Chicago & North Western Railway (C&NW). The C&NW already owned a better constructed route serving Council Bluffs, and much of this line became excess for the C&NW.  In 1971, a section of the line between Harlan and Council Bluffs was abandoned, and the McClelland to Council Bluffs segment sold to the Rock Island.  An additional segment between Somers and Carroll was abandoned in 1977, followed by a section between Manning and Harlan in 1981 and a section between Carroll and Manning in 1983.  After the Rock Island went bankrupt in 1980, the McClelland to Council Bluffs segment became part of the Iowa Interstate Railroad (IAIS).  In 1995, the C&NW was purchased by Union Pacific Railroad (UP).  UP abandoned a section of the line between Thornton and Belmond in 2000, followed by a section between Mason City and Thornton in 2007 and a section between Roelyn and Somers in 2008.  Today, UP operates the Fort Dodge Subdivision between Belmond and Roelyn and IAIS operates a short segment of the Council Bluffs Subdivision between McClelland and Council Blufffs.  The segment between Mason City and Belmond was acquired for trail use, and portions of the right-of-way have been reused as part of the Prairie Land Trail.  The remainder of the line has largely reverted to adjacent landowners, and has been converted to farm fields.


Located along a former alignment of US Highway 20 near Moorland, this steel stringer and timber pile trestle bridge once carried a Chicago Great Western Railway line over an unnamed creek. The first bridge at this location was a timber pile trestle bridge, which was renewed in 1910. In 1927, a secondhand steel stringer span was installed to replace the center spans, and the timber approaches and substructures renewed. The bridge consisted of a 28-foot steel stringer span, set onto timber pile piers and approached by a single 14-foot timber pile trestle span on either end. The main span was originally fabricated in approximately 1910 for use at Bridge #429.24 along this line, which crossed a creek near Halbur, Iowa. The superstructure followed a standard design, with either four or six steel stringer spans. An unknown contractor fabricated the main span, while the timber components were constructed by railroad company forces. Railroads often reused steel and iron spans, as it provided a cost effective way to upgrade bridges without requiring large amounts of new material. Steel stringer and timber pile trestle bridges were popular with railroads in the early 20th Century, as they were cost effective and easy to construct. Since the 1927 reconstruction, the bridge had seen no significant alterations. The bridge was replaced by a modern concrete bridge in 2021. Overall, the bridge was in fair to poor condition at the time of documentation, with significant deterioration to the timber components. The author has ranked this bridge as being locally significant, due to the common design.


Citations

Erection date and relocation history Chicago Great Western Railway Authority For Expenditure (AFE) #6725 (1927) at the Chicago & North Western Railway Historical Society Archives
Railroad History Citation ICC Valuation Information, Compiled by Richard S. Steele

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