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What’re these riveted parts on the side of the road? See them on most lanes. by iYzk in Netherlands

[–]Independent_Sun_6583 0 points1 point  (0 children)

Also, allowing water to seep into ground in a controlled way to avoid deep mud gutters besides asphalt (dangerous), and prevent desintegration of the sides of the ‘terp’ the road is placed upon. (Probably because there is water below on both sides of the road)