104th Avenue Bridge over the Cal Sag Canal

104th Avenue Bridge over Cal Sag Canal

Approach to 104th Avenue Bridge

104th Avenue Bridge over Cal Sag Canal

104th Avenue Bridge

Cal Sag Canal from 104th Avenue Bridge

104th Avenue Bridge over Cal Sag Canal

     The 104th Avenue (Willow Springs Road) Bridge crosses the Cal Sag Canal in Palos in Cook County.   It is a metal 8 panel bolt-connected, polygonal Warren through truss, fixed and approach spans: metal stringer (multi beam ) fixed.  

     The bridge was built in 1964.  The builder/contractor is unknown.  Engineer/Design was Alfred Benesch and Associates.

     Main span is 290 feet.

    Structure length is 406 feet

     Roadway width is 28 feet

    There is one main span and four approach spans.

    The bridge was designed so that it could be later modified to a vertical lift bridge.  This was never done.

     Bridge Inspection (March, 2015)

Superstructure.         Condition   Rating.    Fair.   5 out of 9

Substructure.             Condition   Rating.     Satisfactory    6 out of 9

Deck                             Condition    Rating       Fair.      5 out of 9

Sufficiency Rating.    59.5 out of 100

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