DC Water Completes Potomac Interceptor Emergency Repairs

DC Water completed emergency repairs and restored wastewater flow to the Potomac Interceptor as of March 14, 2026, decommissioning the temporary bypass system that had prevented additional sewage from reaching the Potomac River. Long-term rehabilitation work has begun, including plans to install a new pipe segment via slip-lining over nine to ten months, as part of a broader 10-year, $625 million rehabilitation of the 54-mile pipeline. Beginning March 26, aerial drone inspections using LiDAR technology are being conducted on weekdays through early April to support repair planning; most recreational advisories have been lifted, with limited restrictions near the original overflow site.