District of Columbia, DC Underwater Utility Directional Bore Hard Rock Directional Drilling provides District of Columbia, DC with underground and underwater utility infrastructure construction services via Horizontal Auger Boring, Tunneling and Horizontal Directional Drilling (HDD) more commonly called Directional Boring. We provide underground utility construction services specializing in the underground boring of utility pipelines for … Continue reading District of Columbia, DC Hard Rock Directional Drilling