They are building the S IN leg of I69 around Bloomington. Everywhere along the work zone, they have put up signs "Waters of the US" at every little ravine and holler. Guessing it was a requirement of federal funding. Don't know what the signs actually accomplish, but they are irritating.... can't imagine if that's your property next to the sign. Now why they also put up "Karst formation" signs, I have no idea- but those strike me as just silly.