ROADS minister Duncan Gay joined local Liberal MPs Tanya Davies and Andrew Rohan on site of the $55 million long-awaited project last Friday to inspect progress.
They announced the 3.1-kilometre road was half complete and should be ready by mid next year. Bridge work has started and should be done early next year.
Earthwork and drainage work have finished and most concrete and road surface work should be done in three months.
First promised by then Labor premier Bob Carr, it took seven years and a newly-elected government before work began last October.
"It's what happens when you get a government that gets on with delivering what businesses need," said Penrith Valley Chamber of Commerce chief executive and project campaigner Jill Woods. "It shows businesses can look to the chamber as a voice to make difference for them."
Benefits include taking major traffic off residential roads.
"We won't recognise Erskine Park Business Park in five years as the road will open up the area. Many big businesses weren't prepared to move here till the road was done."
Rondo Building Services operations general manager Shane Navin said the uncompleted project resulted in transport delays since moving to Erskine Park three years ago.
"We moved here on the assumption the link road would proceed without delays," he said. "The road will provide direct access to the M7 which will reduce transport costs and congestion around the M4 and Erskine Park Road intersection.
"It also means safer access to major motorways such as the M7 and our employees can come to work safely."
CSR property general manager and Penrith Business Alliance director Andrew Mackenzie said the road will provide an important east-to-west link for Penrith. "It's the icing on the cake and last missing piece of the pie," he said. "When it's completed I'll walk every single metre to make sure it's real!"
Mulgoa MP Tanya Davies said the road would be tangible proof her government will deliver to western Sydney businesses.