Grafton to Boston via Framingham.

Brief multiplex with MA 9 in Framingham.
Useless multiplex with MA 140 in Grafton.
Brief multiplex with MA 126 in Framingham.

Covers the same basic route as the eastern part of 9 but with much more meandering.

First appears in 1933 along the same routing as today. The only difference is in Boston. In 1953, 30 was removed from Beacon St east of MA 20A and put onto Commonwealth Ave.