The initial phase of the Edinburgh Trams project wasn't great - but I suspect everyone involved knew it was going to be difficult and it's the approach of getting the project started and once started it's difficult to kill (see Robert Moses for that strategy!).
However, it's now a good service, popular and the trams are probably going to be expanded to much more of the city?
Also the Queensferry Crossing bridge was built with relatively little fuss - there were some delays but those were down to some spells of very bad weather.
And the Edinburgh Tram Project
Future:
- Heathrow Third Runway (assuming the government meddle in it heavily)
- Lower Thames Crossing