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A comment on What are those dents in I-90 outside Seattle?. Parent comment

Re:What are those dents in I-90 outside Seattle? by rkagerer on Friday December 30, 2022 @08:46PM (#34192537)
On mobile and no time to correct it myself, but I think there's a consistency mistake in that article:

  The retrofit begins with cutting of six slots (three in each wheel path) across all transverse joints or cracks. The slots are cut with ganged diamond saws that make six cuts in each wheel path.
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Re:What are those dents in I-90 outside Seattle? by kelnos on Saturday December 31, 2022 @12:06AM (#34193770)
The only other explanation I can think of is that the each slot is made with two cuts, each one starting at the crack and moving outward from it. So then the three slots in the wheel path takes six cuts to make (two cuts per slot, outward from the crack). (Or perhaps the opposite; maybe the cuts start away from the crack, and stop at the crack.)

But yeah, also perfectly possible it's just an error in the article :)

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Re:What are those dents in I-90 outside Seattle? by gnomewrecker on Saturday December 31, 2022 @08:17PM (#34202568)
Each slot takes two cuts indeed, but the cuts are parallel, one on each “side” of the slot.

Source: have cut concrete it sucks.

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Re:What are those dents in I-90 outside Seattle? by rkagerer on Tuesday January 03, 2023 @02:43AM (#34228902)
Neat, thanks!
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