Serious traffic disruptions continue on the Great Western Highway at Mount Victoria leaving motorists stranded and with no definitive timeline for reopening.
Transport for NSW is undertaking geotechnical assessments after damage to the road surface was identified at Mitchell's Causeway, known as 'The Convict Bridge' last Thursday.
Shadow Minister for Regional Transport and Roads, Paul Toole, said the information coming from the NSW Government so far simply does not add up.
"The official update suggests this is only road surface damage that does not present an immediate safety risk, yet urgent geotechnical assessments are now being ordered, and traffic is being heavily restricted," Mr Toole said.
"If this is just surface damage, then why are geotechnical investigations suddenly required?
"There is no end to traffic delays nor any timeframe as to when the road will reopen which is highly alarming."
Currently Westbound traffic is being managed under stop-go arrangements with only a single contra-flow lane operating.
Eastbound traffic is being turned around and sent on lengthy detours. This is creating significant delays for commuters, tourists and freight operators using this critical corridor.
All heavy vehicles have been diverted via the Darling Causeway and Chifley Road, placing additional pressure on surrounding regional routes.
Mr Toole said motorists deserve transparency about the true condition of the structure.
"Right now people are stuck in traffic with no clear explanation and no timeframe for when repairs will be completed," he said.
"This is one of the most important transport routes linking Sydney with the Central West and regional communities. If this road is closed the Central West is shut off to the arteries of the state."
Mr Toole also called on the Minister for Regional Transport and Roads to front up and provide answers.
"The Minister needs to provide clarity and not hide behind a vague departmental statement from Sydney," Mr Toole said.
"As commuters sit stuck in traffic once again, it is important to remember that both the Federal and State Labor Governments made the decision to cut the long-planned road project through the mountains.
"Motorists and freight operators across the region are now paying the price for that decision, with congestion, delays and uncertainty becoming all too common on this critical corridor.
"The project was designed to improve safety, reduce travel times and provide a more reliable route for locals, tourists and freight moving between the Central West and Sydney. Instead, Labor walked away from the investment our region desperately needs.
"Regional communities rely on this road every day and they should not be left in the dark."