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Coon Rapids Rail Bridge

Deck Plate Girder Bridge over Middle Raccoon River
Coon Rapids, Carroll County, Iowa

Click the Photo Above to See All Photos of This Bridge!
Name Coon Rapids Rail Bridge
Built By Chicago, Milwaukee & St. Paul Railway
Contractor Unknown
Currently Owned By BNSF Railway
Length 205 Feet Total, 80 Foot Main Span
Width 2 Tracks, 1 In Use
Height Above Ground 48 Feet
Superstructure Type Deck Plate Girder
Substructure Type Concrete
Date Built 1902 (South Track), 1913 (North Track)
Traffic Count 2 Trains/Day (Estimated)
Current Status In Use
BNSF Bridge Number 390.87
MILW Bridge Number Z-1266
Significance Local Significance
Documentation Date December 2017
In 1870, the Sabula, Ackley & Dakota Railroad built a line from Sabula, Iowa to Marion, Iowa; a distance of 87 miles.
This railroad became part of the Chicago, Milwaukee & St. Paul in 1872. The CM&StP (Milwaukee Road) had already constructed a line from Sabula, to Chicago.

By 1881, the Milwaukee Road continued to build west. A new line would be constructed through towns such as Toledo, Huxley, Madrid and Perry.
In 1882, the railroad continued to build west through more towns, such as Coon Rapids, Manning and Neola.
By the end of 1882, the railroad finally reached Council Bluffs.

Although the long mainline was completed, it had many issues. Bridges were not built to standard, curves were an issue; and specifically in the western part of Iowa, grades were atrocious.

Chief Engineer Charles Loweth began to address the problems in 1912. Fresh off of the Pacific Expansion, a veteran team helped redesign two mainlines: Minnesota and Iowa.
The expansion also added the "Pacific" to the title, creating the CMStP&P.
While the Minnesota line presented a fairly straightforward situation, the Iowa line presented more challenges.

The eastern portion of the state was simple, with slight grade and route changes. However, the western portion of the state required many route changes, grade reductions and large bridges.
272 Miles would be completed by 1914, between Green Island, Iowa and Manilla, Iowa. This line featured sleek curves, reduced grades and a top class double track line.
In addition, the remaining track between Manilla and Council Bluffs would also be improved.

However, these expansions quickly were realized as too ambitious. Significant portions of the double track were pulled up. Sections included:
Templeton to Herndon and Newhall to Collins were reduced to single track in 1934. Paralta to Green Island was reduced in 1950, and Madrid to Collins in 1956.

Despite a fairly solid traffic base, the Milwaukee Road was oftentimes in trouble financially. At this point, a mass abandonment was court ordered for the Milwaukee Road. 791 miles in Iowa would be abandoned, including the entire Council Bluffs line.
However, some sections were kept intact. Burlington Northern purchased the line from Council Bluffs to Bayard. This is now the BNSF Bayard Subdivision. BNSF was formed from a merger of the Atchison, Topeka & Santa Fe and Burlington Northern in 1996.
In addition, Chicago & North Western was sold the line from Woodward to Slater, and from Herndon to Perry.
C&NW became part of Union Pacific in 1995. In 2003, the Woodward section was abandoned. In 2004, the Perry to Dawson section was abandoned. The Herndon section was abandoned in 1999.

In addition to the Bayard Subdivision, the Raccoon River Valley Trail and High Trestle Trail also utilize portions of this line.
06/16/22


This large deck girder bridge crosses the Middle Raccoon River in Coon Rapids.
Originally built in 1902, the bridge was extensively rebuilt in 1913 with a second track. As part of the work, the original 1902 bridge was shifted onto new substructures
Another unique feature of the bridge is the abutments. While most Milwaukee Road bridges along this route used large arches for abutments that were used as approach spans, this bridge has arches set into the abutments, a modification from the standard design.
Overall, the bridge appears to be in fair to good condition. This bridge does not have the same serious spalling as other structures along this route.

Historic Photo
Historic photo of previous bridge

The author has ranked the bridge as being locally significant, due to the old age and exceedingly common design.
The photo above is an overview.

Citations

Source Type

Source

Build Date Milwaukee Road Archives at the Milwaukee Central Library
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele



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