WAIT: I just thought of a brilliant idea that everyone will like.
We need
Building Codes for bob houses.. and mandated flotation. Annual State inspection would also be required, including flotation tests to make sure these pieces of sporting equipment do not sink and
Litter the lake bottom, ...which apparently is occurring all too often.
Every
Legal bob house would be issued an inspection sticker indicating proper conformance. An annual fee of course would be required which would be credited to the States Highway Fund for fixing potholes.
NB