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Droichead na hInse
Sarah's Bridge, ca 1820
Island Bridge circa 1820 (then called "Sarah's Bridge")
Coordinates 53°20′50″N 6°18′30″W / 53.3472°N 6.3083°W / 53.3472; -6.3083Coordinates: 53°20′50″N 6°18′30″W / 53.3472°N 6.3083°W / 53.3472; -6.3083
Crosses River Liffey
Locale Dublin
Preceded by First: 1577
Rebuilt: 1791
Renamed: 1922
Design Arch bridge
Material Ashlar masonry
Total length 32m[1]
Number of spans 1
Designer Alexander Stevens[2]
Construction end 1791-1793

Island Bridge (Irish: Droichead na hInse) (formerly Sarah or Sarah's Bridge) is a road bridge spanning the River Liffey, in Dublin, Ireland and joining the South Circular Road to Conyngham Road at the Phoenix Park.

Island Bridge and the surrounding area are so named because of the island formed here by the creation of a mill race towards the right bank while the main current flows to the left. The River Camac emerges from a tunnel further downstream towards Dublin Heuston railway station.


In 1577, during the reign of Queen Elizabeth, while Sir Henry Sidney was Lord Deputy of Ireland, an arched stone bridge was built here to replace an earlier structure nearby at Kilmainham.[2]

This bridge was swept away by a flood in 1787,[2] and between 1791 and 1793 the replacement bridge, that is standing today, was constructed. The structure is a single[3] 32-metre span ashlar masonry elliptical arch bridge[4] and was originally named Sarah's Bridge after Sarah Fane, Countess of Westmorland, wife of the then Lord Lieutenant of Ireland, who laid the first stone on the June 22, 1791.[5]

The bridge was renamed Island Bridge in 1922 following independence from Britain of the Free State, similarly to many other Dublin bridges named for British peers.



  1. ^ Island Bridge at Structurae
  2. ^ a b c Ruddock, Ted (2008). Arch Bridges and Their Builders 1735-1835. Cambridge University Press. p. 122. ISBN 0-521-09021-0. 
  3. ^ - 1828 Print from Ireland Illustrated Petrie, Barlett, & Baynes (with text by George Newenham Wright).
  4. ^ Current and Future Trends in Bridge Design, Construction and Maintenance, Institution of Civil Engineers, ISBN 0-7277-3091-6
  5. ^ - Extract from Historical Guide to the City of Dublin G.N. Wright 1825.