There are currently evening roadworks around the Castle Street, The Plain, Quaker Lane and Rock Street area. This is at the bottom of the High Street around to where Aldi is.

The official diversion is around Midland Way, Morton Way, Gloucester Road, Park Road and into Castle Street where the Chantry will be on the left.

Thornbury Hill is open after 15:30 so should not be an issue.

Link to more info: https://beta.southglos.gov.uk/local-roadworks-south-gloucestershire/