| NC 54 first entered Wake County in 1954, when US 70A was killed in Wake and Durham counties. It originally ended at Hillsborough Street near the state fairgrounds while US 1 was routed along Hillsborough, but eight years later 54 was extended east to the Beltline when US 1 was rerouted to the new freeway.
What eventually became I-40 in western Wake was originally designed as the NC 54 Freeway, a bypass that probably would have left current 54 unnumbered. Before the road was completed, the Interstate designation was moved to the freeway and 54 was left alone.
In 1997, 54 was rerouted to bypass downtown Cary along Maynard Road. The town banned trucks inside the Maynard loop at the same time, so 54's rerouting was an attempt to keep trucks along a consistent route through the town.
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