In the summer of 2022, Municipal Sewer & Water first reported on a new 380-ton, 14-foot 8-inch tall tunnel boring machine (TBM) named Hazel that had been unveiled by AlexRenew — Alexandria, Virginia’s wastewater authority — marking a significant milestone in its RiverRenew...
AlexRenew Celebrates Tunnel Completion on 'Hazel Day'
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