New dig­ging method will ex­pand bridge-tun­nel

Richmond Times-Dispatch Weekend - - SUNDAY IN VIRGINIA -

NOR­FOLK — Some of the world’s most so­phis­ti­cated tun­nel tech­nol­ogy will be used to ex­pand the Hamp­ton Roads Bridge-Tun­nel.

Con­trac­tors will use a mas­sive ma­chine to dig through the soil un­der Hamp­ton Roads Har­bor, The Daily Press re­ported.

The dig­ging will be a change from the pre­vi­ous method used to build or ex­pand bridge tun­nels in coastal Vir­ginia. That method in­volved sub­mers­ing pre­fab­ri­cated pieces of tun­nel into a trench.

Con­trac­tors will add a new bridge-tun­nel par­al­lel to the ex­ist­ing ones that carry In­ter­state 64 from Nor­folk to Hamp­ton.

The project will ac­com­mo­date more traf­fic and will cost more than $3 bil­lion. The state ex­pects to choose a con­trac­tor for the project early next year.

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