What a waste of money, putting a mile marker every 1/2 mile. My husband and I drove through there a couple of weeks ago and decided it must have been Obama Federal Stimulus Money, looking for a place to waste it.
Here in Virginia I-95 has markers every 1/10th mile.
Now that there is some big bucks!
I-55 from St. Louis to the Arkansas line has markers every 1/5 of a mile. I, too, thought them a waste of money (they were put up before Obama) until I realized that wherever you are, you can see one. So if you need to call for help you can tell 911 exactly where you are. The signs include the I55 symbol, the direction and the milage.
And off-off topic when I return to California, I am amazed that they don’t have milage markers.