ESPN had this session video from Windells in the Portland area (Sandy, OR) showing off the new place to be for BMX when the weather is crappy.  It looks like they basically just started letting people ride their bikes on the existing skate park ramps, but there’s no BMX info on Windell’s website yet to yield the 411.  

Besides BMX, they have camps for skating, snowboarding and skiing so the little grommets can get away for some peace and quiet with their parents always harpin’ on them.