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Reply to "Concrete Roads"

Calibration courses on concrete roads are best made irregular lengths, so that they can lie between two permanent fixtures (drain edges, pavement cracks etc).

I've heard of people using a concrete drill to make holes in which to put PK nails. I won't do this, as I rarely put in PK nails at all, except perhaps on bike paths in the middle of unfeatured woods, or on calibration courses on asphalt roads. Too many of the courses I measure change from time to time, and if I had been nailing I'd have them all over the place.

Lately I have taken to photographing the splits and giving a photo CD to the race director. I have found that this serves to refresh my memory too.
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