Butt Bridge

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This article is about the bridge in Dublin. For the bridge in the U.S. state of Georgia, see Butt Memorial Bridge.
Butt Bridge
Droichead Bhutt
Butt Bridge (left foreground) by night
Butt Bridge (foreground) by night, with Loopline Bridge (middle), and Custom House (background)
Crosses River Liffey
Locale Dublin
Material Concrete
Total length ~65m
Width ~20m
Construction end 1932
Coordinates 53°20′52″N 6°15′18″W / 53.347778°N 6.255°W / 53.347778; -6.255Coordinates: 53°20′52″N 6°15′18″W / 53.347778°N 6.255°W / 53.347778; -6.255

The Butt Bridge (Irish: Droichead Bhutt) is a road bridge in Dublin, Ireland which spans the River Liffey and joins George's Quay to Beresford Place and the north quays at Liberty Hall.

The original bridge on this site was a structural steel swivel bridge, which was opened in 1879 and named for Isaac Butt, leader of the Home Rule movement (who died that year).[1]

The swing section, made of wrought iron and weighing 200 tons, ran on a series of cast spoke wheels and was powered by a steam engine, which was housed on a timber pier on the downstream side of the bridge. The swing action allowed boats to pass and berth in the river as far upstream as Carlisle Bridge (now O'Connell Bridge).

In 1932, the swing bridge was replaced with a three span fixed structure of reinforced concrete, but retained its original name.[2] The central span of the current bridge is formed by two cantilevered sections, with the two approach spans acting as counterweights. This model represented the first use in reinforced concrete of a cantilevered and counterweight construction in either Britain or Ireland.[2]

References[edit]

  1. ^ "Project history of Dublin’s River Liffey bridges" Bridge Engineering 156 Issue BE4, Phillips & Hamilton
  2. ^ a b Cox, Ronald C (1998). Civil Engineering Heritage, Ireland. Thomas Telford. ISBN 0-7277-2627-7.