3 ms·
To those interested in arguably the most ambitious boring operation in progress, behold, Bertha in Seattle: http://www.wsdot.wa.gov/Projects/Viaduct/About/Follo
by jsat 10y ago
To those interested in arguably the most ambitious boring operation in progress, behold, Bertha in Seattle: http://www.wsdot.wa.gov/Projects/Viaduct/About/FollowBertha http://www.wsdot.wa.gov/Projects/Viaduct/About/FollowBertha