The Broharris canal was built in the 1820s, and ran for some 2 miles (3.2 km) southwards from Ballymacran Point on the southern shore of Lough Foyle towards Limavady.
The cost of construction was £4,500, and for a short time it was used to transport heavy goods, bulky foodstuffs and raw materials.
It was also used to transport large quantities of kelp and shellfish harvested from the banks of the coastline to the west of Magilligan Point, which were exposed at low tide.
One lock would be located where the canal joined Lough Foyle, and the other would be about 1 mile (1.6 km) from the terminus.
You can help Wikipedia by expanding it.This article related to the geography of County Londonderry, Northern Ireland is a stub.