After being buried for 10 years, the Canal City project in Selangor has resurfaced after flash floods inundated several parts of the state last week.

Former prime minister Najib Abdul Razak said the project should be revisited if it could mitigate future floods.

The Canal City, which kicked off in 2007 by BN-controlled Selangor, involved a flood mitigation project in the form of an 18km-canal linking...