Final Gantry Completes Mobile Support Train Behind Mary Stretching More Than 700 Feet

DC Water’s tunnel boring machine Mary may be the muscle behind the Potomac River Tunnel Project, but the gantries that trail behind her form the heart, brains, and guts of the operation. Now crews have lowered and connected the final gantry section, giving Mary the tools and equipment she needs to continue tunneling north.

From the first signs of construction on your block to the final steps of yard restoration, DC Water’s Lead Free DC (LFDC) program is answering residents’ top questions about the replacement process.

DC Water invites residents to join the next Lead Free DC virtual community meeting on August 26 from 7 PM – 8 PM.

Ten years ago, DC Water took the bold step of recycling waste from the Blue Plains Advanced Wastewater Treatment Plant into Bloom, a nutrient-rich soil product. Since then, Bloom has become a ...