 I @-@ 280 fully opened west from Newark to I @-@ 80 in Parsippany @-@ Troy Hills in 1973 . The portion of I @-@ 280 east of Newark was planned onto an alignment that would disrupt the fewest homes and would utilize existing railroad and utility right @-@ of @-@ way . The section east from Newark to the New Jersey Turnpike was built in 1979 @-@ 80 . In the 1966 plans , I @-@ 280 was to continue east to I @-@ 78 in Jersey City near the Holland Tunnel , following the CR 508 and Route 7 corridors ; this was planned again in the 1970s but never built . 
