Battles of the bridges
The Town proceeded to build the County & Green St. stone bridges is in contrast with its belligerent opposition to the earliest ones.
The Fox Creek Canal
The Fox Creek Canal is the oldest man-made tidewater canal in the United States, dug in 1820. In 1938 it was dredged to accommodate ship-building at Robinson’s Boatyard, where small minesweepers were constructed for World War II.
The Plum Island Salt Company
In the 1820’s a Frenchman named Gilshenan organized an unsuccessful salt harvesting company on Plum Island with a 10′ deep canal and a bull turning an overshot wheel like a hamster. A large sundial survived for a few decades, but no trace remains today.
Historic Ipswich 