District of Columbia, DC Underwater Utility Directional Bore DOT Approved Boring Contractors 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 DOT Approved Boring Contractors