Since our inception in 1982, trenchless construction has been Pacific Boring’s sole focus of work, successfully completing thousands of projects throughout the United States. From 168-inch diameter tunnels in poor soil conditions to 8” auger bores, Pacific Boring has the equipment and technical experience to complete any scope of work. Pacific Boring’s fleet of specialized tunneling and pipe-jacking equipment is the largest in the United States. We take great pride in having built a reputation as a reliable tunneling contractor who through innovation and hard work has safely completed every project on time and within budget.