CARLSBAD, N.M. (KRQE) – Lawmakers are trying to come up with a solution for a giant sinkhole near Carlsbad before disaster strikes.

New Mexico Tech scientists say an unstable salt well cavern in the middle of town could collapse at any time.

An expert with the oil conservation division testified today before lawmakers that it could be another 20 years before a collapse but they won’t know for sure until it happens. He also said that when the collapse happens it will likely take with it part of an intersection, a major canal that supplies farmers with water, and a mobile home park.

They are estimating a price tag anywhere from $25 to $50 million for a controlled collapse or to back fill it.