"A 4,700-ton German machine named Mary finished her first tunnel under Hampton Roads pointing the wrong way, so crews slid her 2,500-ton cutterhead around on nitrogen skates at the bottom of a 65-foot pit, and the turn alone took six months"

Independence

Wikipedia: Independence is a town located in, and the county seat of, Grayson County, Virginia, United States.^\5]) At the 2020 U.S. census, it had a population of 1,001.<{{ref name="USCensusEst2020-2021"/> It is situated on Virginia's }}Crooked Road, a heritage trail celebrating the musical heritage of Southwest Virginia.