Location : The A405 southbound between the junctions with the M25 and the M1 .
Lane Closures : Lane one is closed.
Reason : Road traffic collision.
Status : Currently Active.
Time To Clear : The event is expected to clear between 16:45 and 17:00 on 6 September 2025.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 6 September 2025.
Delay : There are currently delays of 10 minutes against expected traffic.
Lanes Closed : There is one of two lanes closed.