Erie Canal: Engineering, Markets & New York Communities · Grade 7 Social Studies

Part 1 · The gap in the mountains

A farmer in Ohio in 1815 could grow far more than he could sell. Moving a ton of wheat overland cost roughly $100 by wagon, which was more than the wheat was worth by the time it arrived, so western farms grew for themselves and for their neighbours and burned or distilled the surplus. Whiskey travelled; grain did not.

The numbers behind that are worth holding. A wagon and team could haul perhaps a ton; a canal boat pulled by the same horses on a towpath could move thirty times as much, because water carries the weight and the animal only overcomes friction. That ratio is the whole case for canals, and it is why a route with no significant climb beats a shorter route over hills every time.

Water was the answer everywhere it could be arranged, and the Mohawk gap made it arrangeable in New York alone. The engineering problem was still formidable: a rise of about 568 feet from the Hudson to Lake Erie, requiring 83 locks, 18 aqueducts to carry the canal over rivers, and a cut through solid rock at Lockport.

Nobody in America had built anything like it, and there were no trained civil engineers in the country. The men who did it learned on the job, and several of them — including Canvass White, who worked out a cement that would set underwater — effectively invented American civil engineering in the process. The Erie became the training ground for the canal and railroad boom that followed.

Part 2 · Who dug it

The canal was dug by hand, by men with shovels, barrows, horses and black powder. The workforce was heavily Irish immigrant labour alongside local farmers working between seasons, paid perhaps fifty cents to a dollar a day, in conditions that killed a substantial number through accidents and through the malaria that rose from the swamps near Montezuma.

This is the part most often left out of the story, and it matters for the rest of the chapter. The same labour pattern — recent immigrants doing the dangerous work that made somebody else's commerce possible — repeats in the railroads, the mills and the mines, and it drives the migration you will study in two units' time.

Communities grew along the route as it opened in sections. Rochester went from a village to a boom town milling western wheat; Syracuse grew on salt; Buffalo became the transfer point between lake ships and canal boats. The canal did not merely connect existing places. It created the line of cities across upstate New York that are still there.

Part 3 · What a cost collapse does

After 1825 the same ton of wheat cost roughly $10 to move and took about six days instead of three weeks. It is tempting to read that as existing trade becoming cheaper, and that is the smaller part of the story.

The larger part is that goods which could never be shipped at all now could. At $100 a ton, Ohio wheat is not expensive to send to New York — it is impossible, because nobody will pay more for the freight than the cargo is worth. At $10 it becomes ordinary. Whole categories of trade appear that had not existed, which is why the canal's effect was out of proportion even to a ninety per cent saving.

The canal also moved more than freight. Ideas and movements travelled the same corridor, and the strip of upstate New York along the route became known as the Burned-over District for the intensity of the religious revivals that swept it in the 1820s and 1830s — ground that produced abolitionist societies, the women’s rights convention at Seneca Falls, and several new denominations. Cheap transport made a region unusually connected, and unusually open to anyone with something to say.

The consequences ran in every direction. New York passed Philadelphia to become the busiest port in the country, and the Midwest was tied commercially to the Northeast rather than to the South down the Mississippi — an alignment that mattered enormously when the sections divided in 1861. New England farms could not compete with cheap western grain, and their sons and daughters went to the mills instead, which is the next unit.

Part 4 · Imitation and the limits of it

Every state with a mountain range watched New York get rich and tried to copy it. Pennsylvania built the Main Line of Public Works, a combination of canals and inclined planes hauling boats over the Alleghenies; Ohio and Indiana dug extensively; Maryland began the Chesapeake and Ohio. Most lost money, and several states came close to bankruptcy in the panic of 1837 on the debts.

Pennsylvania’s effort shows the problem at its sharpest. Unable to find a low route, its engineers built the Allegheny Portage Railroad, which hauled canal boats out of the water and dragged them over the mountain on a series of ten inclined planes worked by stationary steam engines, then floated them again on the far side. It was an extraordinary piece of engineering and it was slow, costly and fragile, which is what happens when ingenuity is asked to substitute for geography.

The lesson is the one the Mohawk gap taught in the first place: the Erie worked because of a geographic accident nobody else had. A canal that must climb a mountain range cannot compete with one that goes around it, however well engineered.

New York also got the finance right, which is half of why it worked. The state borrowed against future tolls rather than waiting for taxes, sold the bonds in small denominations that ordinary New Yorkers and later British investors could buy, and opened completed sections to traffic while the rest was still being dug, so revenue began arriving years before completion. Several imitating states borrowed to build the whole line at once and had nothing coming in when the panic of 1837 arrived.

The technology that solved the problem for everyone else arrived almost immediately. The first American railroads opened in the early 1830s, and by the 1850s rail was carrying freight the canals had monopolised, running in winter when the canal froze. New York's advantage lasted about a generation — long enough to make it permanently the largest city in the country.