A Hamilton city block closed to traffic by a broken sewerage pipe is just a day from reopening – but held up until the arrival of spare parts.

The stretch of Dundonald Street from Bull’s Head car park to Washington Street is shut off while repair crews wait on components from the US, a Corporation spokeswoman said.

The “large pressure-rated PVC couplings” were said to be difficult to source because of the US housing boom, which has held up supply lines and materials.

The block of Dundonald Street, shut since June 22, will stay closed for most of next week as a result.

The pressurised sewer line is still partially operating, and crews cannot investigate the extent of the damage until the repair parts come in case more damage is caused and “the entire force main goes down”, the spokeswoman said.

She added: “Everyone’s service is currently still on; we have been supplementing pumping with 24 hour pump trucks.

“Once the parts arrive, works will be completed in a day.”