Police warned motorists of traffic delays near Five Star Island in Southampton, due to the “partial collapse of an embankment”.
A police spokeswoman said heavy rain caused the collapse along Middle Road, which caused the westbound lane to be blocked.
“The relevant Government departments have been notified and will attend to clear the debris. Police are currently on scene diverting traffic around the debris, using a one lane system,” she added.
Motorists were urged to use alternative routes.