Rock Springs, WY – State officials say drilling resumed
this week in a Rock Springs neighborhood where homes were damaged last summer by efforts to collapse old, abandoned coal mines.
The goal of the drilling is to find out what is happening in the old mines. The drilling first started last November.
Contractors last summer began using a process known as dynamic compaction to collapse underground mine voids in areas of Rock Springs. The process involved dropping 25-ton weights repeatedly over the mine voids. But complaints from residents about damage to their homes stopped the project just three weeks into it.