Jeff Hammer

Jeff Hammer, PE, is a Senior Tunnel Engineer specializing in underground construction, particularly in tunneling and shaft sinking for the Civil and Mining sectors. They have extensive experience in project management, design, and supervision of field crews, with contributions to several high-profile projects across Nevada, Colorado, Maryland, and New York. Currently, they serve as a Senior Precon Engineer at Obayashi Corporation and have held various engineering roles with notable companies including Kiewit and Traylor Bros., Inc. Jeff's educational background includes a Bachelor's degree in Civil Engineering from the Colorado School of Mines and additional studies in Geotechnical Engineering and Mining Engineering.