PortaDam Technical Guide
PortaDam is OnSite’s leading and proprietary temporary dam system. It is one of the safest temporary dam solutions available in the UK and certified by numerous bodies to satisfy Temporary Works Design Certificates (TWDC).
This unique solution has been designed, engineered, and tested for the specific purpose of constructing a barrier to hold back water. It creates an effective temporary dam, providing a safe and dry area for maintenance, inspection and civil construction works in waterways, rivers, canals reservoirs and docks.