The street below is called "Commerce Street" and this area is known as The Beer Line. The Schlitz Brewing Company was located several blocks downriver. The railroad climbed up and out of the Milwaukee River Valley along this route, below this viaduct. Part of the old railroad trestle is still here.
Byron Kilbourn's railroad ran along here, serving both the Schlitz and Pabst breweries, genesis of the name, "Beer Line."
Commerce Street is over what was once an ill-fated canal project. The canal was supposed to connect Lake Michigan to the Rock River. The grand scheme was to complete a waterway from the Atlantic Ocean to the Gulf of Mexico, via the Erie Canal, the Great Lakes, this canal, the Rock River and Mississippi River. The canal project failed, was filled in and became Commerce Street.
Photo taken by J.R. Manning in July 2008