A405 southbound within the M1 junction | Southbound | Congestion

Location : The A405 southbound between the M25 and the junction with the M1 .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 10:00 and 10:15 on 10 September 2025.
Delay : There are currently delays of 10 minutes against expected traffic.