Manhattan is dense, above ground and below ground. Hence, the city is planning for a 20 year project to to a portion of Park Avenue:

The good news is the city finally has plans to restore 11 blocks of Park Avenue north of Grand Central to a semblance of its former glory, Bloomberg reports, expanding the median from a useless 20 feet to a potentially-rejuvenating 48 feet. That redesigned street could include bike paths, walking paths, and generally more space for things other than cars or pretty things for people in cars to look at as they drive by.

The bad news is many if not most of the people currently living and working in New York will not be around to enjoy it once it’s done. It will take 20 years to redesign these 11 blocks, according to the city’s Department of Transportation. Yes, you read that right. The project to redesign 11 blocks of a Manhattan street will not be completed until 2042.

But there is no mistake, according to both DOT and Kaye Dyja, Powers’s spokesperson. As Dyja explained, “The reason the construction is going to take a long time is because they’re improving the underground railroads leading to Grand Central, as well as redoing the ‘train sheds.’ This entails that they’re digging up the ground, so the construction will have to take place in stages which will end up taking many years to complete.”

The project Dyja is referring to is a massive $2 billion renovation of the Metro North infrastructure underneath Park Avenue from Grand Central to 57th Street. Park Avenue is a bridge over those tracks, and like many of the U.S.’s bridges, this one is falling apart, too. The project will involve ripping up sidewalks and the median of Park Avenue a couple blocks at a time, going section by section, down the stretch of Park Avenue. It is expected to cause more or less permanent disruption to the Midtown East area, to varying degrees, over the next two decades. 

As a kid, I remember reading books with cross-sections of underground Manhattan. Seeing all of that infrastructure needed for modern urban life – pilings for skyscrapers, subways, water pipes and sewers, etc. – was fascinating.

The flip side of that is the work it takes to make significant changes to such a system. It takes time (and money) to work around what is there and complete the work.

The time is one factor but I wonder about how the budgets will work over a 20 year period. Large American infrastructure projects can have a tendency to stretch in terms of time and budget as the work is underway.

I would love to say I will check in on this in twenty years but that is a long commitment…