Melted street signs and roads are the focus of maintenance crews heading into the South Coast and Southern Highlands this week.
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The Currowan fire on the South Coast has burned out more than 300,000 hectares and the Morton fire had taken out 21,000 hectares so far.
In that area is a lot of road infrastructure, all of which will need to be repaired or replaced.
And it's the same story at every fireground - which means a very large repair bill for the state's roads.
"Transport for NSW staff, including operational and maintenance teams, have been on the ground since early September to support emergency services personnel and carry out repairs when safe to do so," a Transport for NSW spokeswoman said.
This week's "priority areas" are the South Coast and Southern Highlands, as well as the Snowy Mountains and Monaro and the East Riverina.
"Our focus for the next two weeks will be to assess damage to the road and rail network," the spokeswoman said.
"Bushfires are unpredictable and can cause substantial damage to road and rail infrastructure, including to road surfaces, guard rails, train tracks, retaining walls, electronic messaging, signalling infrastructure and signs."
READ MORE: Police investigate cause of bushfires
The spokeswoman declined to place a price tag on how much it will cost to repair the state's road network.
The Princes Highway has been significantly affected but a full assessment will not be completed until the fire has passed.
Further south the Kings Highway is also likely to have suffered but the extent of the damage is as yet unknown - the long-term closure of that road is to allow an assessment to be carried out.
Rail lines in the state are also damaged - there are 25 kilometres of fire-affected rail line between Mount Victoria and Lithgow in the Blue Mountains.
The Transport for NSW spokeswoman said repair work will start as soon as possible.
"Transport for NSW is focussed on ensuring the continued safety of motorists, road workers, emergency services and the local communities," she said.
"Where possible, work will start immediately to open roads where minor work, such as the removal of dangerous trees and emergency road surface repairs, are required."