Driveways can sink or **** for many reasons. It might be due to overloading or soil erosion, etc. But a ****ed or damaged driveway is always a liability. The solutions are two-fold. One is to entirely demolish the driveway which is going to cost very high. Or STL Polyjack’s Driveway repair in St. Louis with polyurethane foam injection. It is safe, durable, and economical.