Pacific Gas & Electric (PG&E) has more than 42,000 miles of gas pipeline throughout California. Some sections, like one of the main lines in Fremont, California, cross major interstates and railroad lines. PG&E opted to replace this section of pipeline using a micro-tunneling technique - with…
The Metro Purple Line Subway Extension is extending the existing subway system nine miles to the west in three phases. The project envisions providing a green, reliable, high-speed form of transportation through destinations in LA such as Beverly Hills while…
Sound Transit’s U230 project was designed to connect Seattle — Tacoma International Airport with the University of Washington by expanding an existing section of rail with twin tunnels. Malcolm Drilling’s scope included construction of three soil improvement break-in/break-out blocks to…