This sidewalk is drying unevenly, leaving a snake-like trail of moisture.

    by senecant

    20 Comments

    1. Not a sidewalk or drying expert, but I don’t think that’s whats happening here, given that its localized to small area, and the pattern stops being a wave where it terminates.

    2. My intrusive thoughts would make me want to walk along the curved snake path even though I’m a grown ass man in his 40’s.

    3. You from a colder area? Sometimes they’ll run hoses or pipes under streets and sidewalks to warm them up and prevent ice buildup. Looks like a hose ran under the sidewalk and the heat drying the water from it.

    4. secondCupOfTheDay on

      You can literally still see the salt in the stretch closer to the camera when you zoom in.

      When there’s only a light frost or light snow, not enough to spread the salt out, that area will show wet ground while the rest is covered in frost/light snow. But when it melts, the area with the salt will dry last.

      It’s common to see where you usually spread the salt over an area where you get a much more random patchwork of high/low concentration of salt which makes it fun to play floor is lava, but that approach also tosses a lot of the salt straight onto the grass. This is peculiar because there was probably some instrument that prevents a lot of the waste straight onto the grass, but it’s not that common to see.

    5. I don’t want to alarm you… but there might be a big-ass snail lurking in your neighborhood.

    6. Liquid de-icer from a backpack sprayer. Somebody walking down the sidewalk spraying back and forth.

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