 The turnpike began at the western end of the West Boston Bridge in Cambridgeport (now Kendall Square).From there it proceeded along today's Broadway to Mechanics Square, where it intersected with the Middlesex Turnpike (now Hampshire Street), then continued to the Cambridge Common, skirting Harvard College by as required by law, and from there proceeded northwest past Fresh Pond to Belmont Center, and then onwards to Lincoln by the route now known as Concord Avenue.