Civil Retaining Wall at Lake Merrimu
A 40m concrete sleeper retaining wall, 1.2m high, installed for Southern Rural Water as part of road works to retain the ground and protect native trees.

- Wall length
- 40m
- Wall height
- 1.2m
- Concrete sleeper thickness
- 80mm
- Galvanised steel posts
- 200UC46
Retaining the road alignment and protecting native trees.
The retaining wall was required for a road to be made while protecting native trees. Drainage also ran underneath the road, making the road and drainage interfaces part of the site context.
Outwest supplied and installed the guardrail as part of this package, alongside the concrete sleeper retaining wall.
A civil wall and guardrail package.
- Wall dimensions: 40m long and 1.2m high.
- Sleepers: 80mm-thick concrete sleepers.
- Posts: 200UC46 galvanised steel.
- Additional scope: Guardrail supplied and installed by Outwest.
Project photograph: the Lake Merrimu retaining wall during installation, before the completed guardrail package.
Define the retaining package and its interfaces.
Send the structural drawings, wall schedule, site information, access constraints and tender timing so we can review the construction scope.
