Navigation
Boats with a draught of 1.4 m (4 ft 8 in) in the winter and 1.1 m (3 ft 6 in) in the summer could travel the navigation. Low water in the summer and during low tides meant that the Boyne Navigation was not always navigable. The journey from Drogheda to Slane took 7 hours in summer and 6 hours in the winter. Slane to Navan took 4 hours in the summer and 9 in the winter. In 1847 the toll to travel the lower section was 1ΒΌ d. per ton per mile and 2 d. per ton per mile on the upper section. Boat owners would charge 3 s. per ton to carry freight from Drogheda to Slane and 4 s. 6 d. per ton from Drogheda to Navan.
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