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While bridge building may always be successful (as asserted by the author), close to budget really depends on how you define "close".

Fixed link projects (bridges and tunnels) tend to cost 33% more than estimated (sigma=60%). Rail is even worse at 44% more than estimated, coming in under budget only about 12% of the time.

http://flyvbjerg.plan.aau.dk/JAPAASPUBLISHED.pdf



And even if successful (in that the bridge does not immediately collapse), many bridges have been rendered inoperable due to misuse or neglect.

Anyways, other interesting links on the subject: http://blogs.msdn.com/dave_froslie/archive/2005/03/07/389113...

http://blogs.msdn.com/steverowe/archive/2005/02/28/381910.as...




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