Buses will be diverted around Hethersett until Wednesday due to the closure of part of Back Lane for drainage works.
All First Bus Green Line and Turquoise Line buses will operate via Queen's Road between Norwich Road B1172 and Great Melton Road during the closure.
Back Lane is closed from Churchfields to the Shop Lane junction.
First Bus said its buses would not be able to serve Churchfields, Back Lane or Henstead Road during this time.
A First spokesman apologies for the inconvenience.
Anyone with questions should call First's customer service team on 0345 6020121.
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