Early assessments put council's flood repair bill in the order of $40 million to $50 million but the extent of the repairs is still to be calculated.
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It is expected that figure will substantially increase as assessments progress.
The flood impact is widespread.
Port Macquarie-Hastings Council director Dan Bylsma said damage to local and rural sealed and unsealed road network bridges, culverts and road shoulders was significant.
Infrastructure near rivers and creeks is particularly impacted.
"We have had a large number of landslips and displaced sections of road," he said.
"Our water and sewer assets were also heavily inundated by flood waters but have largely been restored to normal operations in the last 1.5 weeks."
The critical road priority is restoring access to roads and bridges closed to traffic.
"Providing a safe and reliable temporary access is the first step, which will be followed by the necessary design and assessment to restore these roads to their pre-flood service levels," Mr Bylsma said.
Examples of work completed include restoring access to Costigans Road at Yarras as well as to Myhills Bridge at Upper Rollands Plains.
The Settlement Point Ferry is back in action, repairs have been carried out at Kendall Bridge, Pappinbarra Right Arm Road culvert has been cleared and maintenance work done on Lorne Road to provide ongoing access to Comboyne.
Parks and reserves were also hit by the floods.
Acting group manager recreation and buildings Amanda Hatton said many recreational facilities were impacted including playgrounds, reserves, barbecues, fish cleaning tables, benches and landscaping.
Some community buildings were impacted by structural flood damage or simply from inundation.
The council has put in place relief measures to ease the financial burden on flood-affected residents and businesses.
The council has waived waste fees at transfer facilities for flood waste, for example, and waived ferry fees to enable the efficient loading of the Settlement Point Ferry until the end of April.
The council's waste facilities have received more than 9000 tonnes in flood waste over the past two weeks.
The usual volume of waste is 25,000 tonnes a year.
The Emergency Operations Centre swung into action at the beginning of the floods and flood outreach centres opened within a few days of the waters subsiding.
Group manager community Lucilla Marshall said the establishment of flood outreach centres in Laurieton and Port Macquarie and the mobile outreach visits from these two recovery hubs had been appreciated by the community, according to feedback.
The outreach services provide direct access to Services Australia, Service NSW, Resilience NSW, Lifeline, Community Housing, Red Cross and many other key support services.
Council also opened a hotline for people affected by the flood.
Immediate relief teams, including the Australian Defence Force, Fire and Rescue NSW and Rural Fire Service, helped with kerbside collection for flood waste.
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