The spire was designed by Ian Ritchie Architects who sought an "Elegant and dynamic simplicity bridging art and technology". The contract was awarded to SIAC-Radley JV and it was manufactured by Radley Engineering of Dungarvan, Co. Waterford, and erected by SIAC Construction Ltd. The spire is an elongated cone of diameter 3m (9.8ft) at the base, narrowing to 15cm (5.9in) at the top. Construction of the world's tallest sculpture was delayed because of difficulty in obtaining planning permission and environmental regulations. It is constructed from eight hollow tubes of stainless steel and features a tuned mass damper to counteract sway. The steel underwent shot peening in order to subtly reflect the light falling on it. The metal changes colours due to its reflective properties. During the day it maintains its steel look, but at dusk the monument appears to merge into the sky. The base of the monument is lit and the top 12m (39ft) is illuminated to provide a beacon in the night sky across the city.
|O'Connell Street, Dublin 1, Dublin, Ireland
The monument has been nominated for the following:
• 2004 RIBA National Award & Stirling Prize shortlist
• 2003 British Construction Industry International Award finalist
• 2005 Mies Van der Rohe Prize list