Second of four high-priority repair projects is now complete

DC Water has completed the second of four critical repair projects on the Potomac Interceptor Sewer Line. Crews finished strengthening a 490-foot section of the pipe at Broad Run in Loudoun County today.

Beginning this week and continuing through the end of September, DC Water will temporarily close one lane overnight on Clara Barton Parkway at the Maryland-D.C. border. The closures are necessary to allow crews to safely begin geopolymer work, a concrete-like material, applied inside the sewer line as part of emergency repairs to a section of the Potomac Interceptor.

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.