Motorists were urged to be cautious yesterday as many roads in the district were damaged by scouring during the flooding and some were yet to be assessed.
At Bull Creek, a new access road was built yesterday after the main access road washed out on Saturday, stranding 10 Bull Creek residents.
Southroads contractors laid gravel over a culvert on a nearby farm to create a new crossing.
CDC communications co-ordinator Jamie Shaw said 4WD vehicles had been getting through the ford since Sunday.
The CDC is seeking information from the public on who dug an unauthorised trench on the corner of Johnson and Cowper Sts in Milton on Sunday.
Mr Shaw said the trench was about 1m wide and a couple of centimetres deep.
The council would seek to recover the costs of repair from the person who dug it, he said.