Metra Cal Sag Bridges

This is a pair of bridges over the Cal Sag Channel in Blue Island. Adjacent structures are the Blue Island yard and the Western Avenue Bridge.  Builder is unknown.  Date of construction mid 20th century.

DSC_2579

Metra Cal Sag Railroad Bridges

The bridges are metal 12 panel rivet-connected polygonal Warren through truss, fixed.    Largest span is 400 feet.  There is one main span.  There are two tracks on the east bridge.  There is one track on the west bridge.

DSC_2578

Metra Cal Sag Railroad Bridges

DSC_2577

Metra Cal Sag Railroad Bridges

The bridges were built for the Rock Island Railroad. The tracks lead to downtown Chicago.

The tracks currently service Metra Rock Island commuter trains and occasional freight trains.

DSC_2576

Metra Cal Sag Railroad Bridges

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s