Maple Grove resurface...

[Larry Sullivan]

It's interesting that Maple Grove sent to all-concrete and Charlotte went the other way. Both have had weeper problems in past years.

[jwsamuel]

Would you get weepers with a concrete surface or would water pressure from under the track move concrete?

Jim

[Larry Sullivan]

Concord's weepers were at the seam at the finish line. If the hydrostatic pressure gets high enough, the concrete will crack, so the concrete has to have properly drained foundation, just like asphalt. In other words, you can't just scrape off the asphalt and replace it with concrete if you have existing drainage problems.