TransLink buses are being re-routed off the Burrard Bridge in Vancouver, after some construction hardware started popping tires on Wednesday morning.

Officials say the bolts used to install a temporary metal plate during construction work at the north end of the bridge deck are to blame.

The weight of the buses caused the bolts to pop up and puncture about 20 bus tires, according to TransLink officials. Only one smaller passenger vehicle was affected by the problem, according to reports.

TransLink says the following detours are in effect:

  • 2 Downtown/ 22 Knight/32 Downtown
  • 2 Macdonald - 16/22 Macdonald
  • 44 UBC
  • 44 Downtown 

On Friday morning the city said the bolts had been replaced, but the buses would still be re-routed because the construction lanes were too small for them.

Burrard Street Bridge - Vancouver - Feb. 2, 2014

A view of the Burrard Street Bridge, before repairs were started in February. Major structural repairs are underway this spring and summer.

"The city will work over the weekend to try and widen lanes so that buses can be re-routed back onto the bridge by Monday morning," said the statement issued by spokesperson Maureen Gulyas.

The City of Vancouver began major maintenance work and structural repairs on the 81-year-old Burrard Street Bridge in February.

Work crews are in the process replacing 27 bearings and 19 expansion joints, repairing concrete sections and conducting inspections of the bridge deck.

The work and associated lane closures are expected to continue until July.

With files from Steve Lus