A subsurface void is an underground empty space or cavity and ... “The next steps are to determine what the void is and how to fill it,” he said. “They’re doing more testing on the westbou ...

“The underground is basically Swiss cheese ... working to stabilize the area under the roadway by filling holes, loose soil, and small voids while scouting the affected areas for further ...

We did some core holes and we realized we had a void. "So, we ordered 10 yards of a slushy concrete grout mixture, and we filled that hole in. That hole will fill up evenly. So, we did that with ...