The modern alignment follows this alignment very closely, with one exception.

The routing remained unchanged until 1953, when the route was extended along its modern alignment.

By 1928, however, US 7 was relocated to its modern alignment.

US 44 was designated along its modern alignment at the beginning of 1935.

The toll road runs more or less along the modern alignment of Route 184.

In 1937 this was changed to its modern alignment.

In 1974, US 202 was relocated to its modern alignment.

The northern end was shifted to its modern alignment in 1972.

NY 21 turned northeast here, following its modern alignment toward Ontario County.

NY 70 remained unchanged until the 1970s when the route was reconfigured into its modern alignment through a series of changes.