Do my eyes deceive me?
The still-unopened mooring pontoons below the bridge at Ballina (bottom of Lough Derg) seem to have sprouted an extension.
Here is what they looked like in 2009.
The upstream end of the Ballina pontoons in February 2009
Here they are in the floods of November 2009.
The upstream end of the Ballina pontoons in the floods of November 2009
And here they are in January 2011, seen from downriver.
The upstream end of the Ballina pontoons in January 2011
Well I never.
Irish waterways history 