Information about the actual situation at every border crossing point (BCP) between Ukraine and neighbouring European countries (EU + Moldova) is published regularly via the official Telegram channel of the State Customs Service of Ukraine. The interactive map with relevant information is usually updated on a daily basis and can be consulted here. Green indicates that the BCP is not saturated; problematic BCPs are listed in red. The map also contains information on the number of trucks waiting at each BCP.
More resources can be found on the Ukraine information hub: here.
Source: State Customs Service of Ukraine, IRU