https://www.crash.net/motogp/news/1059245/1/deadly-floods-strike-valencia-ahead-motogp-finale
"“An initial inspection the condition of the track is optimal”, however access and parking areas have been “seriously damage” and require “urgent repair”.
"Now begins a damage assessment process that will tell us to what extent this DANA will affect the celebration of the Grand Prix, all previous activities are cancelled for the moment to try to reach the celebration of the Grand Prix with full guarantees as the only objective.”
Fortunately, there have been no injuries among the circuit staff, but there is great damage to the exterior of the facilities, especially in the access to the circuit. We have been informed that the runway appears to be in good condition, although a full assessment is still underway."