This bridge was built in 1913 by the Chicago & Great Western Railroad. The C&GW later became part of the Chicago & Northwestern, which is now part of the Union Pacific. As a result, some folks refer to this bridge as the C&NW Lift Bridge or the St. Paul Union Pacific Lift Bridge. The names can be confusing since there are other major river bridges operated by these railroads.

In 1925, the north end of the bridge was raised 16 feet to tie in with the rail lines that served the St. Paul Union Depot. In 1926, the Robert Street Bridge was built, a project made much more difficult since it had to accommodate rail traffic from the lift bridge. In the first decade of the 21st century, this is one of three operating lift bridges on the Mississippi River. The other two are located at Hastings, Minnesota, and Hannibal, Missouri.

This is a great spot to watch trains. The best spot is a river overlook on the south side of the river. You can get very close to the trains, and still be a safe distance away and remain in a legal spot. Another place to watch is from the deck of the Robert Street Bridge on the north side of the river. There are a lot of trains in this area. Nearly all the trains coming in from the east and from along the Mississippi River flow through the area between the river and Dayton's Bluff. A large wye track sends over half of the traffic to the north to head towards Energy Park, while the remaining traffic comes though lower St. Paul, either headed towards the Omaha Bridge, the Short Line Bridge, or across the Great Western Lift Bridge.

The photo above is a view from Kellogg Avenue in St. Paul. This spot features an elevation about 100 feet above the river level, which results in a sweeping vista of the river and the river flats area south of downtown.

These two photos show two views of the Great Western bridge from the south bank of the Mississippi River in St. Paul, Minnesota. The photo above is a view from the river walk between the Great Western bridge and the Robert Street bridge. The photo below is a view looking directly through the lift span. Note how the bridge lines up both horizontally and vertically with the Robert Street bridge.

These two photos show a pair of Union Pacific locomotives crossing the Mississippi River on the Great Western bridge. The photo above is a wide angle shot, while the photo below is a close view of the lift span.

The photo above shows the two locomotives heading west across the trestle spans of the Great Western bridge. In the photo above, the locomotives are about halfway across the trestle. In the photo below, the lead engine is nearing the end of the bridge. Cab number 3198 is a General Motors EMD model SD40-2 locomotive. It is a diesel-electric locomotive that is able to generate 3,000 horsepower. This unit is an early SD40-2, which was built in late 1972. Nearly 4,000 SD40-2 were built between 1972 and 1986.

One does not need to wait long for the next train to cross the Great Western bridge, as shown in these two photos. The photo above shows the lead locomotive just emerging from the lift span. The photo below shows this train having two large locomotives and a train consisting of at least a number of refrigerated box cars.