M4 fast slip from M4 J4 westbound exit to M4 spur (Heathrow) southbound | Westbound | Congestion

Location : The M4 westbound exit slip at junction J4 for Heathrow. Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 22:15 and 22:30 on 6 August 2019.