Steamboat
Similar boats were made in 1785 by John Fitch in Philadelphia and William Symington in Dumfries, Scotland. Fitch successfully trialled his boat in 1787, and in 1788, he began operating a regular commercial service along the Delaware River between Philadelphia and Burlington, New Jersey, carrying as many as 30 passengers. This boat could typically make and travelled more than during its short length of service. The Fitch steamboat was not a commercial success, as this travel route was adequately covered by relatively good wagon roads. The following year, a second boat made excursions, and in 1790, a third boat ran a series of trials on the Delaware River before patent disputes dissuaded Fitch from continuing.
Steamboats of the Colorado River
After Overman arrived at the river mouth he built the "Black Crook", first tow barge to be used on the Colorado River. Of a type commonly used on the San Francisco Bay and Sacramento River and its tributaries, the barge was 128 x 28 feet capable of carrying 100 tons of freight. These barges were towed on a 100 foot cable secured to a short mast atop the steamboat amid-ship to avoid fouling with the stern-wheel. Each barge had a helmsman that steered the barge in the wake of the boat towing it. In early May, Trueworthy took the "Esmerelda" up river for the first time with the "Black Crook" in tow making it to Fort Yuma in three days, eight hours.