The road was designated as part of I-95 in 1958.

The road was designated by 1972; it has not been altered since.

The road was turned over to local control in 1992, and is now designated as multiple county routes.

The road was originally designated a state route in 1936.

In 1966, the road was also designated as a connecting link.

The road is designated as part of the A4200.

It was later rerouted, and the road is now designated the A167.

By 1929, the road had been designated as a part of State Route 10.

This road is now designated as the R639 regional road.

There will be more than 100 miles of roads designated as the Olympic route network.