Construction industry poor on delivery

A risk posting a website that maybe updated soon but this was last updated no later then June and possibly even as late as early August 2008. LIRR7 progress You might note it said at the time of me posting that the John Smeaton viaduct would open (provisionally) on 1st September. As at the 26th September there was very little sign of it opening soon even though the project is almost 2 years on.

Is there any other industry where there would be little/no objection to a “delivery date” more than twice as long as that “promised” when the “promise” was made almost as close to the completion as it has over-run?