Scope
Reference
CA18/2/1/117
Description
The Mining Remediation Authority (MRA) is seeking a contractor to construct a flow monitoring structure at the outfall of a historic culvert. This culvert drains the dressing floor of a former mine site. The purpose of the structure is to enable accurate measurement of water flows entering a recently lined stream.
Following the application of concrete canvas to line the stream, water discharging from the culvert is no longer contained within the channel. This is due to the culvert's invert level being lower than the level of the stream lining at the discharge point, causing water to flow beneath the lined channel. As a result, sediment has accumulated near the culvert outlet.
The proposed works involve modifying the existing stone-lined culvert to intercept and convey flow to a suitable downstream location. At this point, a V-notch weir will be installed to discharge into the lined stream, allowing for accurate flow measurement.
Due to the risk of sediment build-up within the culvert, a CCTV survey will be required to assess sediment volume. If necessary, sediment will be removed to prevent future obstruction of the monitoring structure.
The estimated budget for the works is £80,000.
Contract dates (estimated)
- 1 December 2025 to 31 March 2026
- Possible extension to 30 June 2026
- 7 months
Main procurement category
Services
CPV classifications
- 71300000 - Engineering services
Contract locations
- UKL1 - West Wales and the Valleys
Engagement
Engagement deadline
31 July 2025
Engagement process description
Please contact us if you have any questions about this opportunity or wish to be informed of progress
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Publication date of tender notice (estimated)
1 September 2025
Contracting authority
Mining Remediation Authority
- Public Procurement Organisation Number: PRPD-5825-QDVY
200 Lichfield Lane
Nottinghamshire
NG18 4RG
United Kingdom
Contact name: Peter Kobryn
Region: UKF15 - North Nottinghamshire
Organisation type: Public authority - central government