Tags: W.C. Kerr
W is for Weathered Rock An old-school sound test demonstrates the difference between soil, core stones, and solid bedrock. Early in my career, I worked on a project in the northern Virginia province of Piedmont. I was preparing a map and report ...
SUBSCRIBE & FOLLOW
- Miner suspended upside down pulled to safety by his pant legs722 Views
- MSHA and NSSGA release new infographic about material handling injuries287 Views
- Obama signs two-week transportation patch into law222 Views
- Democratic senators call for shorter highway bill in order to maximize funding218 Views
- Caterpillar to close Kentucky plant, cut 50 jobs202 Views