The military is continuing to assist the emergency services in Lincolnshire after a river burst its banks following heavy rainfall.
More properties are being evacuated and residents from a total of 580 homes in the Wainfleet area are being advised to leave.
The Royal Air Force was called in on Thursday evening to repair the burst banks of the River Steeping.
The RAF has since successfully repaired the breach after dropping 270 tonnes of gravel but the local council said it could be breached again.
Three Chinooks from RAF Odiham and a Puma from RAF Benson were used to stop the flow of water.
They were also supported by a joint RAF and Army unit, although just the RAF and one Chinook continue to help.
Lincolnshire Police said the water levels in the village are slowly reducing but said residents should be prepared to stay away from their homes "for around 48 hours".
The flood came after Lincolnshire suffered more than double June's average rainfall in three days.