Running for about 10.19 miles (16.40 km) in a general east–west direction, connecting rural portions of Morgan County, passing through Wilbur.

The highway proceeds due east into Morgan County as a two-lane road, passing through farmland.

[4][5] The highest traffic count is at the eastern end of SR 142, where 1,557 vehicles travel the highway on average each day.

The lowest traffic count is west of Wilbur, where 1,045 vehicles travel the highway on average each day.

[2][3] In 1935 the construction east of Wilbur was completed and the road surface was either gravel or stone.