The average burden of these boats was 200 tons each, making an aggregate of 90,000 tons and their aggregate value, at $80 per ton, was $7,200,000. Many of these were fine vessels, affording most comfortable accommodations for passengers, and compared favorably in all particulars with the best packets in any part of the world. The number of persons engaged in navigating the steam-boats at this time varied from twenty-five to fifty for each boat, or an average of about thirty-five persons, which gives a total of 15,750 persons employed.
It appears from the reports of the Louisville and Portland Canal at this time that more than seven hundred flat-boats passed that canal in one year. There were, therefore, probably four thousand descending the Mississippi, and counting five men to a boat there were 20,000 persons employed in flat-boating. The cost of these boats was in the neighborhood of $400,000, which, as they did not return, was an annual expense; the cost of loading, navigating, and unloading them approximated $900,000, making a total annual expenditure upon this class of boats $1,300,000.
