Utilising the power of vegetation!
11 Jan 2011
Salix client Team Van Oord working on behalf of Environment Agency, Consulting Engineers Halcrow. Salix deliver pre grown NAG P550 designed to withstand flow velocities of 7.6 metres per second. A value engineering alternative to rock, gabion mattresses and some concrete solutions, that gives greater protection than 76cm rock rip rap!
9000m2 of NAG P550 was installed in September 2009 by the main contractor Team Van Oord on a lowered flood spillway embankment. Just two months later in November, the area experienced the worst flooding in 25 years of recording with floods exceeding the 1:30 year events of 2004/2005.
The Results
All parties concerned were impressed with the performance of the product, with Team Van Oord Project manager Matt Phillips stating "The pregrown NAG P550 performed very well during a significant flood event. There was no flood damage to repair on the banks protected by the NAG P550".
Both NAG C350 and P550 have the option of design software to provide fully indemnified designs. NAG C350 and P550 have replaced articulated concrete products on spillways, drainage channels, SUDS, streams and river banks.