Frederick Douglass Tunnel Project is advancing beneath Baltimore while trains continue running across one of the busiest rail corridors in the United States. The $6 billion construction replaces the 150-year-old Baltimore & Potomac Tunnel, which still carries about 14 million passengers annually. However, the aging structure restricts speed and reliability. Therefore, engineers are building a […] The post $6 Billion Frederick Douglass Tunnel Project Drives 16km Construction in Baltimore appeared first on Construction Review .
