As we know from older dams (Africa for example) there is kudos funding to build them, but maintenance is not so prestigious, and takes a huge amount of energy.
An article in The Newyorker deals generally with large projects, citing one in particular.
The Trouble with Megaprojects
Flyvbjerg finds much of this familiar. He writes that megaproject planners are often outright dishonest, systematically overestimating​ benefits and underestimating costs. He cites an unusually candid comment that Willie Brown, a former speaker of the California State Assembly and mayor of San Francisco, made in a 2013 newspaper column. Referring to huge cost overruns during the construction of San Francisco’s four-and-a-half-billion-dollar Transbay Transit Center, Brown wrote, “We always knew the initial estimate was way under the real cost…. If people knew the real cost from the start, nothing would ever be approved. The idea is to get going. Start digging a hole and make it so big, there’s no alternative to coming up with the money to fill it in.”