$10,000 a sign seems about right. I know they are expensive. What grinds my gears is all these future I-74 signs that have been along the Wilmington to Charlotte corridor for 15-20 years now and by the time NCDOT gets the whole corridor upgraded, probably 2040, maybe 2035, but it will be time to replace those I-74 signs just as the I-74 goes from future to reality.
I think some of that money could go to get some lights along various rural BUT busy interchanges and replace some of these ugly chicken wire traffic lights with mast arms.
All I know is that those wineries that have the white signs with grapes that are built to official sign standards cost $55,000. I read that in NCDOT documents several years ago.
I know they must have engineering drawings with details of the footings, etc. and sight lines/ distances must be approved by an engineer and then the fabrication costs.
i don't know if that included one sign in each direction or if it was per sign.
The "FUTURE I-74" signs are for converying that info now. Yes, it's a shame that 20 years will pass before it's a reality, but they have to spread funds across the whole state with a thin, skim coat, lol.
I hate the wood sign posts they've implemented in the last few years. I hope that's a temporary practice.
California uses wood posts extensively for ground-mounted signs but I still don't like 'em.