The road remains largely as it was on opening day, though the plants in its median have given way to a steel guard rail, and most recently to concrete barriers, and it now carries the designation State Route 110, not historic U.S. Route 66. Between 1954 and 2010, it was officially designated the Pasadena Freeway.
The route is a connector to Unionville, and intersects with an old alignment of its original designation, Route 84.
However, plans never finished, and instead, the designation of Route 182 was assigned to the original alignment of Route 57.
Since its designation, the route has largely remained the same.
When US 206's current alignment bypassing Columbus was built by the 1960s, the designation of Route 170 was given to the old alignment through Columbus; this road was turned over to Burlington County in the 1980s and is now CR 690.
Route 2 became Route 17 in 1942 to match the designation of New York State Route 17 for defense purposes during World War II.
Phoenix freeways are funded primarily by local sales tax dollars rather than federal money, so newer freeways were, and are, given state route designation as opposed to interstate designation.
There have previously been two other BUS M-28 designations for routes in Newberry and Marquette.
This road is also signed with the unusual designation of State Route 14U through the city of Santa Clarita.
Based on research and existing management guidelines, the paper compiles a set of best management practices to minimize impacts during system design, and provides management strategies to further reduce impacts after route designation.
Its north end was truncated in 1926 as a result of the designation of U.S. Route 2 but was extended north along an old alignment of Vermont Route 12 in the 1960s.
