Track prep for rainy days?

What type of soil?

Most tracks pack the truck with a roller or a dozer. DO NOT rip the soil before a rain.

Drainage drainage drainage. Prep for rainy days starts way before the rain. Thought needs to he put into the layout, put in features to shed the water away, and wherever local entrapped areas may be lay drain tile down.

At my local track we put a layer of sand over the top layer. If we have heavy rain before opening we get the added layer off. This only work with certain types of sand and you need to manage your water very well. We have ponds we collect the water in and use the same water for the automated watering installation on hot / dry summer days.

Depends on the dirt. PNW clay-based stuff we just pack it down hard with a dozer and make sure it's crowned so runoff doesn't pool. Drainage is key - move the water wherever you can to keep it off the track.

When I start my builds I try to raise the track surface above normal ground level everywhere I can. Requires a lot of planning, and sometimes bringing in dirt, but a dug-in track is way harder to manage in the wet than a built-up track.

Washougal is an example of a track that over the years has become so dug in that heavy rain is almost always a disaster there regardless of packdown. There's just too many places on the racing surface where water pools, can't get out, and makes mud.

The Oatfield in Norcal is the opposite - it's built up and handle hard rain pretty well.

Hammer 663s