A progressive design-build delivery method, 24/7 worker scheduling and shutting the tunnel down during construction helped ...

Crews use a custom gantry to position a precast concrete invert slab segment in the Howard Street Tunnel. Contractors on the project say the use of progressive design-build enabled them to improve ...

Americans have grown used to a certain rhythm when it comes to infrastructure projects. We hear the announcement with fanfare, wait through years of delays, watch the budgets swell, and too often we ...

Construction workers on the CSX’s Howard Street Tunnel Modernization Project in Baltimore, Md. This story was originally published on Construction Dive. To receive daily news and insights, subscribe ...