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IAIS Little Vermillion River Bridge

Deck Plate Girder Bridge over Little Vermillion River
LaSalle, LaSalle County, Illinois

Click the Photo Above to See All Photos of This Bridge!
Name IAIS Little Vermillion River Bridge
Built By Chicago, Rock Island & Pacific Railroad
Contractor (1900 Spans) American Bridge Company of New York
Contractor (1952 Spans) Bethlehem Steel Company of Bethlehem, Pennsylvania
Currently Owned By Iowa Interstate Railroad
Length 156 Feet Total, 54 Foot Largest Span
Width 2 Tracks, 1 In Use
Height Above Ground 5 Feet (Estimated)
Superstructure Type Deck Plate Girder
Substructure Type Concrete
Date Built 1900; Partially Replaced 1952
Traffic Count 6 Trains/Day (Estimated)
Current Status In Use
RI Bridge Number 982
Significance Minimal Significance
Documentation Date June 2015
In 1852, the Chicago & Rock Island Railroad began construction of a line heading southwest from Chicago, towards Joliet; a distance of 40 miles. The line crossed through junctions that would eventually become major in Chicago, including Blue Island and Englewood.

In 1853, the line was extended another 119 Miles to Geneseo, about 20 miles from the Mississippi River. This section crossed the Des Plaines River at Joliet and Fox River at Ottawa, and followed the Illinois River.
The remaining section of line was built in 1854, and went up to the Mississippi River.

The first railroad to reach west of the Mississippi was this one, as a swing bridge was built to cross the Mississippi in 1856.
However, the bridge became infamous for an accident in which the bridge collapsed after being struck by a boat. The lawyer who defended the young railroad? Abraham Lincoln, who would eventually become 16th president of the country.

The railroad renamed in 1880 to the Chicago, Rock Island & Pacific Railway, also known as the Rock Island.

The railroad operated this line heavily, extending it through Iowa towards Nebraska and the pacific. The line was the backbone of the railroad.

However, despite the seemed success of the railroad, it eventually began to fail. By 1980, the railroad fell to bankruptcy and abandoned all their property.

This line was purchased by the Iowa Interstate Railroad west of Ottawa, and CSX Railroad east of Ottawa to Joliet. Metra currently uses the Chicago to Joliet portion, for their Rock Island District.
Today, much of the line has been upgraded from the poor conditions it was at in 1980. It is operated as the CSX New Rock Subdivision east of Ottawa to Joliet.
West of Ottawa to Davenport, it is operated as the 1st Subdivision of the Iowa Interstate Railroad.
08/26/21


Located in the town of LaSalle, this standard deck plate girder bridge crosses the Little Vermillion River.
In 1900, a three span deck girder bridge was constructed at this location, using the original 1854 substructures. In 1952, these stone piers were encased in concrete, and two spans were replaced with identical spans.
Bridges like these are standard to cross small to medium sized rivers. Typically durable, these bridges provide extra load capacity as well.
Overall, the bridge appears to be in fair condition, with minor deterioration noted.

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

Citations

Source Type

Source

Build Date Bethlehem Steel Company plaque
Contractor Bethlehem Steel Company plaque
Railroad Line History Source ICC Valuation Information, Compiled by Richard S. Steele



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