Here's the same sign with a bit of road for context, does that help you figure it out? Notice how the vines are covering the whole area, not just the sign.
Here is another sign nearby the first. This one is a bit easier since you can read the word Lane, but which lane is it?
Need a hint? The vines covering the signs are porcelain berry, an invasive deciduous, woody, perennial climbing vine with flowers and tendrils that is often confused with plants from the grape species. It has taken over this section of River Road in Bethesda, MD.