Earlier today, a 36-inch water main burst in Manhattan, sending water skyward into 23rd Street  and Broadway at Madison Square Park. The 98-year pipe flooded the intersection with several inches of water, enough to breach the subway vents to the N, Q, and R line trains, sending a waterfall into the station and shutting down service. According to CBS New York, a total of three feet of water made it into the station. The MTA released a video showing the dramatic waterfall, a chilling reminder just how fragile New York’s vital infrastructure can be and making us wish that a few more of those designer-subway-grates by the like of Rogers Marvel and others were installed throughout the city.