These 6 x strata units were built in the mid 1980’s on undulating ground and near to the bottom of a natural drainage culvert.
Solve Civil was contacted to assist with a solution that was designed to channel water from a storm event around the bottom 2 residential units and out to the street. The walls were constructed around 2 stormwater surge grates where water could discharge and run through the channel formed by 2 walls 2500mm apart with a 3% fall to the road drainage system. The retaining wall system selected was smooth finish Canberra Concrete charcoal sleepers with galvanised steel I beams.The retaining wall system selected was smooth finish Canberra Concrete charcoal sleepers with galvanised steel I beams.
Details:
Canberra Concrete Sleepers – smooth charcoal finish
Very narrow working area between boundary and residence construction.
Top 3 courses needed to be sealed to prevent water flow through the concrete sleepers
10mm Metal & Ag drain behind all areas
Hand work required to install posts, sleepers, ag drain & backfill
