Waterways Ireland wishes to advise masters of vessels on the Shannon Navigation that a diving operation and underwater survey will take place in the vicinity of Ballymacegan Island and Tiranascragh from this Wednesday 1 to Sunday 12 June.
These locations are approximately 8km upstream of Portumna Bridge on the inland waterway.
Safety vessels will be supporting the diving operation and temporary markers will be deployed to mark the dive area.
Masters of vessels are requested to proceed with additional caution in the vicinity of Ballymacegan Island and Tiranascragh during these scheduled works.