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UPDATE: Potomac Interceptor Collapse, February 17
Potomac Interceptor Collapse UpdateTuesday, February 17, 2026
No overflow events impacting surface waters were reported overnight. No overflow events impacting surface waters have been reported since February 9, 2026. DC Water continues making significant progress toward stabilizing the Potomac Interceptor, with crews successfully testing the bulkhead system and bypass pumps. Six of the seven new high-capacity pumps are now operational, with the seventh expected to be online tomorrow. Crews are continuing to test and optimize the enhanced bypass system and expect it to be fully operational by ... Read More
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DC Water Advances Work to Repair Damaged Section of Potomac Interceptor
Emergency repair expected to take 4-6 weeks, followed by long-term rehabilitation
DC Water crews and its contractors, working under challenging conditions over the past month, are nearing completion of an enhanced bypass system that will allow emergency repairs to begin on a damaged section of the Potomac Interceptor.
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Update: Potomac Interceptor Repairs, February 15
Potomac Interceptor Repairs Update
February 15, 2026
No overflow events impacting surface waters have been reported in the past 24 hours. The four high-capacity bypass pumps installed this week are now fully primed and operational, increasing overall system capacity and reliability. In addition, the third flume at the downstream end of the canal near Lock 10 is now active and conveying wastewater back into the Potomac Interceptor, joining the two original flumes already in service. These measures are helping improve flow management and provide additional operational redundancy. Three additional ... Read More
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dc.water
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Crews have successfully tested the bulkhead system and the enhanced bypass pumps at the Potomac Interceptor. Six of the seven new high-capacity pumps are now online, and the full system is expected to be fully operational by the end of the week. No overflow events impacting surface waters have been reported since February 9. This progress brings us closer to safely beginning emergency repairs inside the pipe. Details▶️: https://www.dcwater.com/about-dc-water/media/news/update-potomac-interceptor-collapse-february-17
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