Motorists planning on taking Hwy. 401 west of London overnight Saturday should expect some major delays.
The Ministry of Transportation says demolition work at the Mill Road underpass will result in the full closure of the highway from Colonel Talbot Road to Iona Road for 10 hours.
The closure affects both directions of the 401 and will begin at 10 p.m. Saturday and continue until 8 a.m. Sunday.
For the duration of the closure, the MTO says provincial police will be rerouting traffic off the 401 from Colonel Talbot and Iona roads down Talbot Line.