The underpass project is two-thirds complete and progressing well, despite recent heavy rainfalls, according to Main Roads.
Clayton Street night work usually starts about 7pm and continues until about 6am to avoid causing daytime traffic delays.
The Midland Redevelopment Authority’s $15 million Clayton Street upgrade includes a roundabout, cycle lanes, pathways and native plant landscaping.
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READ NOW“Thursday nights they usually set up a little later, around 10pm, for late-night trading,” an MRA spokeswoman said.
“All work will be finished in time for the hospital opening.”
On the northern side of Lloyd Street, the eastern access road is sealed and entry to the shops is via this access road.
On the southern side of the underpass, a temporary detour road off Clayton Street leads to Coppershop Road.
The road is sealed and traffic controlled to enable shop deliveries and access for police vehicles during construction.
Access to the busy retail area has been continuous throughout the works.
Work in September and October will see the bridge supports and the walls of the cycle and pedestrian paths in the underpass completed.
The construction team achieved a major milestone with the installation of beams for the Cowie Close road bridge in a single day.