 By 1973 , the road bypassed Columbia . In 1984 , US 98 was routed to bypass Hattiesburg on I @-@ 59 and a new freeway . A bypass to the north of Tylertown was built for US 98 in 1985 . US 98 was moved to a new alignment to bypass Lucedale in 1988 . In 1996 , US 98 was routed out of Beaumont and McLain as a result of the construction of a new alignment on a divided highway . By 1998 , MS 198 was marked on the six former alignments of US 98 in Tylertown , Columbia , Hattiesburg , Beaumont , McLain , and Lucedale . In 2005 , the eastern terminus of the McLain section of MS 198 was truncated from US 98 to MS 57 . 
