State Route 54 is a short highway completely within the town of Mona in Juab County in northern Utah that connects Main Street (old US-91) to I-15 in a span of one mile (1.6 km).

From its western terminus, the highway veers to the northeast and steadies out to the east.

It continues this direction before it ends at a cattle guard just east of its junction with I-15.

In 1975, after I-15 was completed, old US-91 through Mona (then designated SR-41) was given back to the town and Juab County.

[2] The entire route is in Mona, Juab County.