Arizona State Route 180A
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State Route 180A (SR 180A) is a highway in Apache County, Arizona that runs from its junction with US 180 to SR 61 east of St Johns. It is a north-south route for the entirety of its 10 mile length.
The "A" designation typically denotes an alternate route highway. In reality, SR 180A follows the original alignment of US 180 before the more direct route from St Johns to its current junction with SR 180A was built. 180A now serves a bypass route for north-south traffic wishing to avoid St Johns.
SR 180A has no junctions with any highways aside from its endpoints.
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