Tag Archives: Shannon Commissioners

Clondra Lock

The lock at Clondra may be the only one on the Shannon that is in the same place, and doing the same job, since the days of the Commissioners of Inland Navigation in the middle of the eighteenth century. The lock itself has been refurbished several times, and in recent years the lock furniture has been altered to make it impossible for boaters to work their own boats through it. But it has a very interesting collection of gear and it is well worth using, even if you’re not going to the Royal Canal at Richmond Harbour.

Who took the arch? A Shannon whodunnit

O’Briensbridge is a village in Co Clare, islanded between the headrace of the Ardnacrusha hydroelectric power station and the River Shannon. Up to 1929 the river was the navigation between Limerick and Lough Derg (and eventually Dublin), and the bridge itself was something of an obstacle to navigation.

In 1832 the engineer Thomas Rhodes drew a sketch of the bridge with 14 arches, whereas nowadays it has only 12. We know when the seven arches on the Co Limerick side were reduced to six, but it has not been clear when an arch was removed from the Clare side. I think I know the answer; you can read it here.

From the hearts of cranes

Several ports on the Shannon Navigation have old cranes (or parts thereof), most of them nicely painted. Their age may not be apparent, but it is possible that they date back to the days of the Shannon Commissioners in the 1840s; at least one of them may be even older than that.

This page shows photographs of those cranes I know of, and discusses their possible ages. But there is much that remains unknown, and readers may be able to cast light on some of the mysteries.