Tender: Nant y Mwyn 25-26 Scour Protection and Bank Stabilisation Works

About

Contractor needed to install scour protection and bank stabilisation measures to prevent the Nant y Bai watercourse from scouring spoil heaps and mobilising metal-rich spoil into the channel. Works include installing a mix of rock-filled rolls and bags, geotextile matting and wooden stakes at discrete bank locations; supplying and installing 150 rock-filled bags in Areas 3, 5 and 6; translocating Purple Moor grass from within the Site as agreed with the ecological supervisor; installing silt traps; installing an overland pipe with associated capture and outfall structures; delivering plant and materials along designated routes (which may include helicopter lifts) and providing equipment to minimise route impacts; and planning and executing temporary flow diversion measures to enable riverbed works. All activities must avoid undue harm to local ecology (including protected Calaminarian habitats), avoid damage to local heritage features and existing services, prevent damage to the forest track road, avoid undue disruption to the local community, and be carried out in accordance with the Environmental Action Plan prepared by the Mining Remediation Authority and agreed with NRW; contractor input on design methodology based on prior experience is welcomed.