The cost to the state for the El Pípila underpass was 326 million pesos. At its completion many speculated about the possibility of flooding. And now, six months after its inauguration, it has not happened, but the lift station accumulated a foot of mud.
How could the residents not consider that, knowing that this is one area of the many floodplains in the city. They believed that after 326 million pesos invested, flooding would not be possible. The hydraulic work represented a challenge, because it was done in the place where the water from the peripheral colonies converge. To avoid the accumulation of rainwater in a single point, each neighborhood has collector sewers that divert the current to other channels. But also, under the construction there is a pumping station that can extract up to 120 liters of water per second from the place. There are two more pumps, which, if necessary, can operate at the same time, expelling up to 360 liters per second into the adjacent channel.
The Department of Water and Sewerage, SAPASMA, is in charge of the hydraulic system. On the night of June 14 they provided maintenance because accumulation of sludge could represent future problems. They made assurances that maintenance will be constant.