One year later, SR 598 was extended to the northeast along a previously un-numbered roadway, then northerly along a brief overlap of SR 61 and a short state highway that had carried the SR 289 designation to its current northern terminus at what was then the predecessor to SR 103, SR 194.
One year later, SR 598 was extended northeastward along an unnumbered road, then northerly along a brief overlap of SR 61 and a short state highway that had been designated as SR 289 up to its current northern terminus at what was then the predecessor to SR 103, SR 194.