When it comes to the rhythms of life on a Broncos Sunday, nobody has a handle on the ebb and flow quite like Dario Diaz.
On the second-floor of a building on the city's west side, the load control system operator for Denver Water keeps an eye on nine video monitors. One of them is tuned to the game. The others track the water usage of 1.3 million people.
As halftime arrives, Diaz and two other workers brace for the inevitable: Sudden water-pressure drops across the metro area turn the monitors red with alarm notifications.
On any other day, these might signal a water main break or a jammed valve that would send repair crews rushing to the scene.