River Gwenfro, North Wales UK
Client: Gower Homes
The stream bank needed to be protected from erosion as
the bank was modified to allow the development of the adjacent land for housing. Initially, gabion baskets were proposed but Salix provided a bioengineering alternative incorporating Rock Rolls, Pre-Established Coir Rolls and NAG V-Max erosion control geomats (P550 and C350). The bank protection is designed to withstand the expected flow velocities of over 3.5 m/s. Over 200 metres of stream bank was protected using this detail.
Materials used: Rock Rolls, Coir Rolls NAG P550 and C350
Rock Roll installation at the toe of
the bank
The completed bioengineering solution
The bioengineering solution 8 weeks
after installation, after a major
flood event
The bioengineering solution 4 months
after completion
