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The original was posted on /r/todayilearned by /u/UndyingCorn on 2024-04-09 21:36:20.

Original Title: TIL One of the biggest bottlenecks in road work is soil compaction. Soil can’t effectively be compacted more than around a foot (30 cm) at a time. Any road work that affects the soil foundation can take months because of this.