the City of Auburn, California decided it had to do something about
subsurface drainage under their streets, they turned to Multi-Flow.
They liked the fact that that they could get by with a narrow trench.
This meant that less spoil need to be carried away and less backfill
aggregate needed to be carried in. There was also likely to be minimal
A rock wheel
trencher was used to cut through the asphalt pavement and gravel
base. The compacted base was surprisingly wet and in need of drainage.
six and eighteen inch Multi-Flow were used in the project. The Multi-Flow
was attached to PVC pipes for transport to the storm water system.
This historic gold rush city might not have streets paved with gold,
but with a well drained base, its pavement should last a good long