Last week I got in touch with the Ohio Department of Transportation to ask about them.

CNN: In Ohio, signs of soldiers' sacrifice

"After the General Assembly votes to name a portion of a highway, we manufacture the signs and put them up at the designated places, " said Steve Faulkner, a spokesman for the Ohio Department of Transportation.

CNN: In Ohio, signs of soldiers' sacrifice

The Ohio Department of Transportation's Faulkner told me that, because the authorizations from the General Assembly are sent over at widely spaced intervals, he did not have a readily available number of how many Ohio service members in America's recent wars have had portions of highways named for them.

CNN: In Ohio, signs of soldiers' sacrifice