Source: https://tendernation.io/opportunities/01a13bce-b6fb-73eb-a351-800f80d59c6a/nant-y-mwyn-25-26-scour-protection-works awarded GB open procedure Suitable for SMEs # Nant y Mwyn 25-26 Scour Protection Works [Mining Remediation Authority](https://tendernation.io/buyers/mining-remediation-authority) Estimated value £100,000 Published 3 Apr 2026 Deadline Closed 5 Dec 2025 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Below-threshold contract Buyers cannot shortlist bidders on suitability before tenders are in, so everyone gets to submit a bid (except some larger works contracts). [Procurement Act 2023, section 85](https://www.legislation.gov.uk/ukpga/2023/54/section/85) - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The purpose of these works is to prevent the Nant y Bai watercourse from continuing to scour (causing active erosion of) spoil heaps that make up its banks and causing mobilisation of metal-rich spoil into the watercourse. It is proposed to install a mixture of scour protection interventions including rock filled rolls and bags, geotextile matting and wooden stakes at a number of discrete areas along the bank to stabilise the spoil and prevent ongoing erosion by the Nant y Bai. We would welcome input from the Contractor regarding current design methodology based on previous experiences. The Works comprise the following: - Install scour protection measures in accordance with the drawings; - Install slope stabilisation measures in accordance with the drawings; - Supply and install 150No. rock filled bags as specified on the drawings and as directed on site to provide scour protection in Areas 3, 5 and 6; - Translocate Purple Moor grass into the working area in accordance with the drawings. The source of Purple Moor grass to be agreed with the ecological supervisor but shall be within the Site; - Install silt traps in accordance with the drawings; - Install an overland pipe with associated capture structure and outfall structure in accordance with the drawings; - Deliver plant and materials along designated routes to limit impact on the protected ecology and provide any equipment necessary to minimize the impact on the designated routes. This may include helicopters to aid in load lifting and placement of rock roll bags; and - Plan and execute temporary flow diversion measures to enable the Works in the river bed to be completed. The Works must be carried out, including transportation of plant and materials, in a way that: - Does not cause undue harm to the local ecology, including plants, trees and particularly the protected Calaminarian habitats (comprising metallophyte flowering and non-flowering plant species); - Does not damage local heritage features, including historic mining structures and artefacts; - Does not cause undue disruption to the local community; - Does not cause damage to existing services; - Does not cause damage to the forest track road, - Is in accordance with the relevant Environmental Action Plan (EAP) as prepared by the Mining Remediation Authority and agreed with NRW. Read full description ## CPV classification Excavation work at archaeological sites Source Find a Tender (UK) · Notice ocds-h6vhtk-058ec4-2026-04-03T06:08:48+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-058ec4-2026-04-03T06:08:48+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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