What happens if you rezone a neighborhood for thousands of new residents, but don’t bother to plan any infrastructure around it?

As I understand it, India Street’s catch basins don’t tie into the City’s sewer system, they never have. And the City doesn’t have plans for these hookups for a number of years out. So people who wanted to get to the India Street Pier (and the ferry) were facing years of having to parkour over the plastic barriers to get to the pier. But now the developer of the “The Greenpoint” condominium is addressing the access to India Street via a temporary raised sidewalk while (as they should, even though the lack of infrastructure isn’t their doing this is literally their front yard).