Lower Bann
The Lower Bann flows from Lough Neagh at Toome to the Atlantic Ocean at Portstewart. The river is 38 miles (51 km) long and is a canalised waterway with five navigation locks at Toome, Portna, Movanagher, Carnroe and Castleroe. The river is very popular with water sports enthusiasts, anglers and cruisers and has minimal commercial traffic. It acts as most of the border between County Antrim and County Londonderry. The only commercial port on the river is at Coleraine. Ships from Londonderry Port and the Port of Belfast transfer coal and scrap metal.
The water level on the Lower Bann is controlled by Rivers Agency using gates situated at Portna (near Kilrea) and The Cutts at Coleraine.
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