“The [road] between Van Buren and Figure Five was a major project and is so well done. Thank you for this excellent improvement, which was completed well before projected dates (at least the dates I’d heard). I know in your job, as in mine, you hear lots of complaints. I want to thank you for always being available and for doing such good work.”
A variation of karst sinkhole grouting is the grouting of mined coal seams and workings located below existing infrastructure that exhibit the potential to propagate to the surface and cause sinkholes and/or subsidence.