Retaining Wall Case Study

Maple Ridge Retaining Wall Replacement

New Wave Earthworks replaced a failing wood landscape-tie retaining wall with a drainage-backed Allan block wall, restoring the yard and tying the new wall into existing boulders and mature site conditions.

Location

Maple Ridge

Old wall

Rotten 6x6 landscape ties

New wall

Allan block with drainage and clear crush

Timeline

About 3 weeks
Finished Allan block retaining wall replacement in Maple Ridge Failing wood retaining wall before replacement

The Site Challenge

The old wood wall was leaning, rotting and showing the usual drainage problems found in older landscape-tie retaining walls.

Access was tight through a neighbouring backyard, and the wall had to tie into existing boulders near a maple tree without creating unnecessary disturbance.

What New Wave Built

  • Excavated the failing wall area and removed the old wood ties.
  • Installed drainage pipe behind the new wall system.
  • Built the replacement Allan block retaining wall and filled behind it with clear crush.
  • Tied the wall into the existing boulder area and worked around mature site constraints.
  • Restored the yard with topsoil and seed after construction.

Coordination and Controls

  • Chris noted that local retaining wall height rules can change over time, so wall height, engineering and permit requirements should be checked before starting similar work.
  • The project stayed focused on proper drainage, stable backfill and reducing the pressure that causes older wood retaining walls to fail.

Outcome

The customer received a cleaner, longer-lasting retaining wall system and a restored yard, replacing a failing wood wall that had poor drainage and visible deterioration.

Related Services

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