Its track-record to date includes more than 304 miles of tunnels, 11,930 miles of roads (including 2,485 miles of highways), 2920 miles of railroad lines (including 434 miles of high-speed railroads) and 16,994 miles of road maintenance and repair. This role assists the Senior Geotechnical Engineer with basic geotechnical analyses, design calculations, technical studies, field and laboratory coordination, risk assessment, quantity estimates, reports, and review of geotechnical design information under the direction, training, and mentorship of experienced geotechnical design personnel.