It heads northeast through neighborhoods to leave Lebanon (concurrent with SR 24) and pass through farmland for several miles to cross into Smith County.

It goes through some neighborhoods and passes by some businesses before entering downtown at an intersection with SR 135, which provides access to Tennessee Technological University (TTU).

It then begins paralleling I-40 and goes through a large wooded area before coming to an intersection with SR 84 and becoming concurrent with it before having another interchange with I-40 (Exit 300), just before entering Monterey.

US 70N/SR 24 turns east and goes through a small neighborhoods before having another interchange with I-40 (Exit 301) before leaving Monterey and going through more countryside, paralleling and crossing the interstate twice before entering Cumberland County.

It continues through countryside and then farmland to pass through Cumberland Cove before entering Crossville at an intersection with the new SR 462 (Northwest Connector).