RETAINING WALLS

Retaining walls are more than structural – they shape land, support assets, and enable safe use of space.

TWC delivers engineered retaining systems tailored to each site’s geotechnical conditions, using materials from timber and concrete to keystone and anchored solutions.

With a strong focus on buildability and site safety, we deliver walls that are as robust as they are cost-effective – completed on time and built to last.

retaining walls

Retaining walls are more than structural – they shape land, support assets, and enable safe use of space. TWC delivers engineered retaining systems tailored to each site’s geotechnical conditions, using materials from timber and concrete to keystone and anchored solutions. With a strong focus on buildability and site safety, we deliver walls that are as robust as they are cost-effective – completed on time and built to last.

Close-up of the red word 'WSP' in a stylized font on a white background.

“WE ALL MANAGED TO HAVE A WALK OVER OF THE SITE TODAY INCLUDING A MORE SENIOR NZTA REPRESENTATIVE. WE ARE ALL THOROUGHLY IMPRESSED WITH THE LEVEL OF WORKMANSHIP AT THIS SITE.”

— Engineer’s Representative, WSP

Construction workers and machinery paving a road on a cloudy day
Construction workers laying gravel on a road with an excavator in the background, surrounded by trees and cloudy sky.
Construction site along a road with orange barriers, wooden and metal fencing, and a drainage pipe running into the ground, with cars in the distance under a cloudy sky.
Road construction with workers, barricades, and orange traffic cones along a highway with trees and blue sky.
Construction workers install support beams along a hillside for a retaining wall, with heavy machinery and safety fencing nearby.
Construction workers in orange safety vests and helmets operating a large orange excavator on a dirt road, installing or repairing utility poles and pipes under a partly cloudy sky.
Construction site on a hillside near water, with a small excavator and a dump truck, involving a white geotextile fabric and rocks.
Construction site with two cranes lifting large rock-filled gabions, one yellow and one orange, with workers nearby and a truck in the background.
Construction site near a body of water with trucks, excavator, and equipment working on land development
Construction site with an orange excavator, two orange ride-on rollers, and gravel ground, surrounded by trees and clear blue sky.
Construction workers in orange safety vests and helmets working on a landslide site with excavator and protective fencing, surrounded by dirt and greenery.
Under construction scene with wooden stakes, concrete blocks, and construction tools on dirt path, with trees and orange safety barriers in background.
A curved dirt road with a white and brown wooden fence running alongside, overlooking a grassy hillside and trees in the distance under a cloudy sky.
Aerial view of a bridge crossing over a river, with large rocks at the riverbanks and grassy, tree-filled landscape surrounding the area.
Bridge crossing over a river with trees and rocks along the riverbank under a blue sky.
Construction site along a river in a forested mountainside area, with large concrete pipes and barriers placed by the water's edge.
Construction equipment on a riverbank with a small excavator and a tracked loader, building a retaining wall with large concrete blocks and rocks in a lush, green, wooded area.