More than one month after the last overflow into the Potomac River, DC Water is preparing to return flow in the coming days to the Potomac Interceptor and meet the mid-March target to complete the emergency repair on the damaged pipe section. Crews have completed work to reinforce the pipe sections upstream and downstream of the collapse site using geopolymer to strengthen the pipe. The work included 320 linear feet of the upstream section, 300 linear feet of the downstream section, and drop sections where the elevation changes. Geopolymer, is strong like concrete but more resistant to sewer ... Read More

Work is nearly complete on the downstream section of the Potomac Interceptor to reinforce the pipeline with geopolymer. The concrete-like material will strengthen and restore the structural integrity of the pipe. Completion of the geopolymer lining downstream is one of the final steps to restore flow to the interceptor and finish the emergency repair.

This comes one month since the last overflow reached the Potomac River.

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As emergency repairs continue, today marks 27 days, nearly one month, with no overflow reaching the Potomac River.

Crews are making significant progress to reinforce the downstream section of pipe from the collapse site and completed 240 linear feet of geopolymer overnight. Crews are working to apply another layer of geopolymer today. The material is similar in strength to concrete and when applied restores the structural integrity of the pipe.

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