Those who frequent the Vila Mariana and Ana Rosa stations would hardly imagine that there is a secret subway tunnel between them. Although the passage connecting Lines 1 (Blue) and 2 (Green) goes unnoticed by users, it is one of the “invisible” branches that keep rail-based public transportation running in the capital. Learn about the strategic role of this secret passageway in everyday life in São Paulo!
Did you know there’s a “secret tunnel” in the São Paulo subway?
At first glance, the underground passage looks like any other track in the São Paulo subway. The main difference is that this section has no platforms or access to the surface, functioning asan “invisible corridor” for strictly operational use.
The function of the secret tunnel, therefore, is to allow for the swift transfer of trains between Lines 1 (Blue) and 2 (Green). This way , crews can perform maintenance, storage, and maneuvers without interfering with passenger traffic.
Is it possible to visit the underground passage?
Although curiosity about São Paulo’s “secret tunnels” is high, the branch line is not—and there are no plans for it to be— open to the public. In other words: if you really want to see it, you’ll have to pursue a career as a subway worker.
If you work in a different field, don’t be sad. Content creator Renato Lobo, from the Via Trolebus website, followed the subway’s nightly maintenance crew and recorded an exclusive video in the passageway between Lines 1 and 2. Check out the details of this impressive structure below:
Bonus content for subway enthusiasts
The São Paulo Secreto team also participated in the subway’s nighttime maintenance, this time on Line 4-Yellow. There are more than 400 professionals and just 3 hours to get everything in tip-top shape! Check out this adventure: