Above: 1916 advertisement that also has a rare photo showing one of the spans of this bridge raised.
After being abandoned for many years, something that rarely happens in the railroad world these days has occurred with this bridge in 2015. The abandoned tracks are being rebuilt and reopened! As part of this work, the long-abandoned western half of this bridge is being extensively rehabilitated. It is a very interesting chapter in the history of this unusual bridge, and its rehabilitation will ensure that the bridge is not at risk for demolition anytime in the near future. There is one major downside however, because the 1901 deck truss approach spans were removed and replaced with modern plate girders as part of this project. The below photo showing the project in process (with one of the deck truss spans removed) is shown below. Click the photo for enlargement.
Photo By Patrick T. McBriarty.
Here, there are four bridges side by side, each carrying two tracks each. They are among the most unusual of the movable bridges in the greater Chicago area, and have a unique appearance to them. The bascule truss spans seen today were built in 1909-1910 by the Chicago Bridge and Iron Works. There is a colorful history behind these bridges. The bridge was originally built in 1901 as an unusual fixed bridge that was designed to be converted into a double-leaf bascule bridge in a number of years, when movable bridges would be required on the canal. When the time came to convert to a movable bridge however, it turned out to be just as cost effective to build a new bridge and so the existing single leaf bascule spans replaced the 1901 span. The 1901 approach deck truss spans remained in use. Today, one of the bridges has had its deck truss spans replaced, but the deck trusses remain on other bridges. Follow the historic The Journal of the Western Society of Engineers Link to find a fascinating, detailed article that discusses the history of the bridge, has photos showing its construction, and includes photos of some original plan sheets.
In their page for the nearby Western Avenue Bridge, the Historic American Engineering Record calls these unusual railroad bridges, which are nearby the Western Avenue Bridge, the "Scissors Bridges." Such a nickname seems appropriate since they do have a scissors-like look to them, which is because the machinery end (the end with the counterweights), of the four bridges are not all on the same side. The crossing was traditionally known as the Eight Track Bridge however. The trusses on the bridge employ a Warren truss configuration, and there are riveted connections present on the bridge.
Above, a historical drawing from Marine Review shows what the original 1900 bridge would have looked like in the raised position if it had actually been converted into a bascule as originally planned.
During the decision making period that resulted in the fixed span being replaced completely with the bascule span seen today, the Scherzer Rolling Lift Bridge Company's rival, Joseph Strauss of the Strauss Bascule and Concrete Bridge Company, came forward with an alternate proposal to remove the fixed span and erect a Strauss trunnion bascule bridge. Unsurprisingly, Strauss felt that rolling lift bascule bridges were the worst sort of bridge imaginable and Strauss trunnion bascule bridges were the solution to every movable bridge problem to be found. Obviously, in the case of this bridge, the proposal Strauss made was ultimately rejected. However, the text of the letter he wrote to the Board of Trustees of the Sanitary District of Chicago, available in the box below, is an interesting look into the rivalry between Strauss and Scherzer.
Letter to the Board of Trustees of the Sanitary District of Chicago
from Joseph Strauss
Thanks to Tom Winkle for providing boat transportation to assist in the photo-documentation of this historic bridge.
Sanitary District PlaqueERECTED BY
--- OF ---
----- 1909 -----
ROBERT. R. MC CORMICK
BOARD OF TRUSTEES
WILLIAM H. BAKER
WALLACE G. CLARK
HENRY F. EIDMANN
PAUL. A. HAZARD
THOMAS J. HEALY
ROBERT. R. MC CORMICK
EDWARD I. WILLIAMS
GEORGE M. WISNER
C. R. DART
THE C. J. RY. CO.
Builder PlaqueSCHERZER ROLLING LIFT BRIDGE
WILLIAM SCHERZER, C. E.
PATENTED DEC. 26TH, 1893.
PATENTED MAY 1, 1900. JUNE 19, 1900. NOV. 5, 1901. NOV. 5, 1901.
JAN. 27, 1903. MAR. 3, 1908. AUG. 4, 1903. FEB 16, 1904.
PATENTS ALLOWED AND PATENTS APPLIED FOR
THE SCHERZER ROLLING LIFT BRIDGE CO.
Information and Findings From Chicago Landmarks Designation
Address: South of 31st St., West of Western Ave.
(Chicago Sanitary and Ship Canal)
This Bridge Is A Designated Chicago Landmark
Complete Bridge List
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