NZTA finishes bridge repairs

Part of the Oamaru Creek bridge in Severn St has been coned off after being hit by a vehicle....
Part of the Oamaru Creek bridge in Severn St has been coned off after being hit by a vehicle. PHOTO: WYATT RYDER
Traffic flow returned to normal last Friday when the work to the Oamaru Creek Bridge in Severn St was completed.

NZ Transport Agency Waka Kotahi has been working on the bridge during the past month after it was hit by a truck in mid-April.

Initially, it was thought the truck caused mainly superficial damage, but after an inspection engineers realised the damage went deeper.

NZTA coastal Otago senior network manager Michael Tannock said the crash on the southbound side of the bridge caused reasonably significant structural damage to the railings, their posts and the masonry of the bridge.

Excavation was needed down the back of the bridge wall to remove the fill, to remove the masonry blocks and relay them where possible.

Given the bridge wall acted as a retaining wall for the state highway, it needed to be fully repaired to strengthen it.

The new reinforced concrete pillar was poured last week, and boxing and formwork came off last Friday, Mr Tannock said.

The decorative panels and railing were installed, and asphaltic concrete poured for the road surface. There would be some additional painting once the concrete elements cured properly.

Because the damage was caused by a crash, the cost of about $50,000 for the emergency and heritage restoration should be covered by insurance.