USDS-73 Drain Data Sheet
USDS 73 prefabricated vertical drain is a two-part composite drainage system consisting of an inner corrugated plastic core wrapped with a spunbonded non-woven geotextile filter specifically designed for drains over 100 ft deep.
The Geotextile fabric allows water to pass through while keeping out the soil. The type 73 drain is appropriate for the majority of soil consolidation improvement projects with all raw materials manufactured to ISO standards.