In tandem with the BBC's poll of the Greatest Briton, the ICE is asking the engineering community who they consider to be the greatest engineer of all time.
A shortlist of 12 has been compiled by ICE head librarian and chief historian Mike Chrimes, and votes cast are instantly entered into a running tally for each engineer.
Over 1,500 votes have already been cast in the ICE poll, with Brunel clear favourite with 35% of the vote. Ove Arup is second with 18%, with Joseph Bazalgette and Thomas Telford battling for third.
Meanwhile the ICE urges all members to continue voting for Brunel. The deadline for entries is 24 November.
Vote at: www. ice. org. uk/member/ engineervote/index. asp For the BBC's Greatest Briton:
www. bbc.co.uk/history/ programmes/greatbriton