this was the only instrument used for engineering purposes after the first survey by Weston
Two routes were considered; the rejected route was forty years later selected for the Lowell railroad.
The canal, 30 ft. wide, 4 ft. deep, with twenty locks, seven aqueducts, and crossed by fifty bridges, was in 1802 sufficiently completed for the admission of water, and the following year was opened to public navigation from the Merrimac
to the Charles
The cost up to this was but little more than the estimate, amounting to about $500,000, of which one-third was land damages.
The canal demands more than a cursory notice in the records of the Medford
Of the nine petitioners for a charter, seven, including the chairman and clerk of the preliminary meetings, were citizens of Medford
In the first board of directors, three—John Brooks
, Ebenezer Hall, and Jonathan Porter
men. Of the eight hundred shares into which the capital stock was divided, more than one-fifth of the entire issue was taken in Medford
; and, though the stockholders never received an adequate return for their investment, the town was enriched by the development of a great shipbuilding industry along the banks of the Mystic
Beginning at Charlestown mill-pond, with which it communicated by a tide-lock, the canal passed under Main street, across the Neck.
Dipping under the Medford turnpike
, it followed the edge of the marsh, along Mt. Benedict
, to the base of Winter Hill
, which it closely skirted on the northerly side, through the present Mystic Trotting Park
, by the Royal House
, to Main street, at which point it sent off a branch canal connecting by two locks with the Mystic
Passing under Main street, it ran along the line of Summer street, under South street, a little further on, in its later days, under a railroad bridge (the lateral walls of which are still visible in the embankment) to the Mystic
, which it spanned by a wooden aqueduct of 100 feet,