It travels westward to unincorporated area of Caseyville, and turns north near the Ohio River.

[2] In 2017, the Kentucky Transportation Cabinet (KYTC) calculated as many as 277 vehicles, including 17 trucks traveling on KY 1508 west of Locust Lick Road, and as few as 72 vehicles, including 16 trucks traveling north of Lawyer Loop.

It then borders the Big Rivers Wildlife Management Area and State Forest,[2] with one entrance at Locust Lick Road.

[1] At Caseyville Cemetery Road, the state forest no longer borders the route.

[2] A source of sand and gravel for KYTC Division of Materials is located off KY 1508 and Bell Tip Road.

[1] KY 1508 turns sharply north at Brooks Street,[1][5] and travels toward the unincorporated area of Mulfordtown, parallel to the Ohio River.