No, you can get up there via whites creek but the Thomas creek side is extremely wet and muddy. People have been riding it and it is deeply rutted and is going to require a ton of work to repair. All of whites is rideable as well as all the trails below timberline road.
Sorry to report that Whites Creek has been sanitized once again. It won't be long until Whites Creek resembles a sidewalk. The rocks in the middle of the right hand switchback in the South Side Up switchback series are gone. In other words, the last right hand switchback going up. Why people?
Consciousness, that annoying time between bike rides.