One of those head scratching moments seeing the icicles in this tunnel while out on my long run today. Kind of makes me think there is cracks in it 🥶🏃🏻‍♂️

@ericmwalk Don’t run through that tunnel anymore! I’ve got a degree in Engineering Failures from YouTube and I learned recently how unstable concrete once gets water into it.

@jean good advice. I don't go that way often so I might avoid it from here on out 👷‍♂️

@ericmwalk Reinforced Concrete’s Number 1 Enemy

I found the Building Integrity channel when I was trying to understand the collapse of Champlain Towers on Miami Beach, near where I grew up. I’ve watched hours of engineering videos now. 👷‍♀️