Given that this lock was built as part of the new waterway that opened on March 1, 1933 and that the canal was closed in 1933, this new lock must have been completed just in time to not be used! In fact, "the last commercial boat to make the trip from Peru to Lockport was the 'Niagara' in October 1914."
[JOLIET Transportation & Industry A PICTORIAL HISTORY by Robert E. Sterling, p14] So the government stupidity of building something that is not needed is not a recent development.
past the end of the parking lot. You can see the top of Lock #5 to the left of the middle trees. The grey "hill" is a levee between Lock #5 and Brandon Lock, which is out of frame on the right.
The crane is on a barge in the lock.
The next day, when I went back to check out the crane action, the gaggle was down by the beginning of the parking lot. The grass embankment in the background is the edge of the I&M Canal from which I took the first pictures of the lock.