High Quality Content by WIKIPEDIA articles! U.S. Route 6 is the portion of the cross-country U.S. Route 6 within the state of Connecticut. West of Hartford, the route either closely parallels or runs along Interstate 84. Interstate 84 has largely supplanted Route 6 as a through route in western Connecticut. East of Hartford, the route serves as a primary route for travel between Hartford and Providence. Route 6 is 116.33 miles (187.21 km) in length.