By: Intimid8er Oops! Maybe not! I was rudely wrenched out of my reverie this morning on my ride to work. The State D.O.T. is resurfacing a stretch of concrete (not macadam) highway along my route. They've ground down the surface for rain grooves. It makes for some tricky riding, but once you are used to it, it is okay. Some of the grooves are deeper than others and can influence your line of tr... more.