The wharfs for small craft are a good example. They are left to deteriorate beyond repair at which point it becomes too expensive to bother. The same goes for lighthouses. Since 1970, those no longer being used have been abandoned. They are neither repaired nor maintained. After a while, they are too far gone to be maintained and then they have to be demolished or destroyed.
In the House of Commons on May 10th, 2005. See this statement in context.