Explications

par jfpoulin, vendredi 02 novembre 2018, 01:49 (il y a 2749 jours) @ Christian

Voici l'explication sur REDDIT d'un gars qui est allé voir sur place
c'est de la construction sur Sherbrooke

It’s work being done by the city on Sherbrooke st. Freaked me out too when I heard it but I went down and did some snooping and basically they’re lining old sewers between Fort and Guy with a process called trenchless pipe lining. The sound comes from pressure being released from a huge compressor (last night it was on st Mathieu and Sherbrooke)

Here’s a vid about the process (3mins in shows what’s happening that uses air compressors that make the ungodly noise) https://youtu.be/LtZnpEedsg0

And an advisory from the city: http://ville.montreal.qc.ca/pls/portal/docs/PAGE/M_CHANTIER_FR/MEDIA/DOCUMENTS/417620_A...

Anyway reality is always boring but hopefully it clears things up! Freaky Halloween vibes though I’m glad I got a recording.