State Highway 98, or SH 98, is a north–south state highway in Bowie County, Texas, covering a total distance of 8.913 miles (14.344 km). Its northern terminus is at U.S. Highway 82, 3.3 miles (5.3 km) due west of New Boston. From there, it travels half a mile south, passing under Interstate 30. Two miles further south, it intersects Farm to Market Road 1840, and FM 561 beyond that. It ends at U.S. Highway 67 in the unincorporated community of Simms.