This stamp is on the west side of Kipling Boulevard, alongside Capital Imaging (which is located on East Michigan Avenue at Kipling). I have previously catalogued a George Hagamier stamp on the same stretch of sidewalk and written a little about the Capital Imaging building in the process.

The southern sidewalk stamp.
Stamp on the driveway.

This is the most recent example I have seen of the “1980s” style DPW stamp, and also therefore the latest use of the “DPW” name. The next style used appears to be the simple “O & M” stamps. Most of those are undated but I have found a few marked as 2005.

There are three stamps, one on either end of a run of sidewalk and one on the driveway in between.

The northern stamp. Looks like they had a false start. I recognize that kind of misprint from my rubber stamping hobbies.
The back corner of Capital Imaging. The southern stamp is by the side door, the northern one is in the foreground here, and the other one is in the middle of the driveway apron.