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CLINTON'S MEMORIAL
93
of eight feet lift each, at 2,200,000 dollars, a little more than 13,000 dollars a mile. Fortunately, however, we have more accurate information than mere estimates.
In the appendix to Mr Gallatin's report, it is stated by Mr Joshua Gilpin, that "by actual measurement, and the sums paid on the feeder, it was found that one mile on the Delaware and Chesapeake canal, the most difficult of all others, from its being nearly altogether formed through hard rocky ground, cost 13,000 dollars, and one other mile perfectly level, and without particular impediments, cost 2,300 dollars; from hence, the general average would be reduced to 7,650 dollars per mile."
The Middlesex canal,[1] in Massachusetts,
- ↑ The Middlesex Canal was twenty-seven miles in length and joined Boston Harbor at Charlestown with the Merrimac River. It was incorporated in 1789, begun in 1790 and opened in 1804. Its cost to 1815 was over half a million. It was thirty feet wide at the top, twenty feet wide at the base and three feet deep. The rise from Boston to summit level was one hundred and four feet and the descent to the Merrimac, thirty-two feet. It included twenty locks, seventy-five feet long, ten feet wide at the base and eleven feet wide at the top, capable of locking a boat of fourteen tons. The income from tolls beginning with $7,000 in 1808 had
