River Diversion, Orgreave Open Cast Coal Mine, RJB Mining Limited, South Yorkshire
Passing through the site, the River Rother was preventing further development. A new route following the perimeter of the site was agreed with the Environment Agency. Aesthetic and environmental concerns required the immediate ‘grassing-over’ of channel sections.
New 40m wide main channel for normal flow lined by asphalt-reinforced geomat
Wider, flanking flood channel for lesser flows lined with geomat only
20kg/m2, 20mm thick geomat manufactured off site
Rapid growth of grass encouraged by placing seed beneath geomat