jeff_wisnia wrote:

One of them was highway speed limit signs in KPH, posted alongside (or
right under) the MPH ones. They disappeared a few years after they
went up, at least they did here in Red Sox Nation.



Some were waiting for the stimulus money.

"[ARIZONA, Apr 26, 2009] The state Transportation Department is getting
ready to spend $1.5 million replacing metric signs along Interstate 19 with
mileage signs."

http://www.azstarnet.com/metro/290334