90 miles (145 km) from Dublin to River Shannon with 46 locks.
Navigation is theoretically open from Dublin to the Shannon – however, there are obstructions to navigation in Dublin – see here. Hire fleets in operation.
75 ft (22.9m) x 13.3 ft (4.0m) x 4 ft (1.2m)
10.0 ft (3.05m) over a width of 8 ft (2.4m).