http://maps.google.com/maps?hl=en&geocode=Fb_XBgIdAg78-g&split=0&sll=37.0625,-95.677068&sspn=23.875,57.630033&ll=33.99945,-84.14257&spn=0.022842,0.0315&z=15
I've been looking and I don't see where something like that would be. I don't see a park called 'Canal', either.
That's on the Welland Canal! Or, was it Hamilton... I know! South Chicago!
On a serious note... the Lift Bridges crossing the Calumet River at Torrence Ave. were designed by the same Engineer as the Duluth bridge. The twin side-by-side liftbridges carrying the rail line over the Calumet just south of 95th St. may have been as well.
Hunter D., I beg to disagree--or to at least take issue with syntax!
The Duluth Aerial Bridge was designed by Claude Allen Porter Turner (based on an idea by Thomas McGilvray, based on a patent by Fernidad Arnodin) in 1899 as a transfer bridge. I was converted to a lift bridge in 1930 by the Kansas City firm of Harrington, Howard, and Ashe. Several lift-style bridges cross the Calumet; the first was built in 1938; I could not find any records regarding what firm designed and/or built any of the bridges. Still, there is a good chance that that firm did indeed design and build those bridges.
Harrington, Howard, and Ashe built a great many lift bridges across the U.S., but they did not design Duluth's lift bridge so much as adapt an existing bridge to work as a lift bridge. John Harrington apprenticed under John Alexander Lowell Waddell, the "father f the lift bridge"who designed the very first lift bridge in 1891 for a contest put on by the City of Duluth for a bridge over the canal; the corps of engineers rejected the steam-driven bridge because of too great a chance it would fail in the lowered position, stopping ship traffic through the canal. A few years later Waddell's design was built over the Chicago River: the Halstead Street Bridge, the world's very first life bridge. There's a painting of that bridge and photos of the engineers and the whole story of Duluth's aerial bridge in "Crossing the Canal: an Illustrated History of Duluth's Aerial Bridge" written by some blowhard know-it-all who operates www.x-communication.org.
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