A405 southbound between M25 and M1 | Southbound | Congestion

Location : The A405 southbound between the junctions with the M25 and the M1 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 17:30 and 17:45 on 12 August 2025.
Delay : There are currently delays of 10 minutes against expected traffic.