# Tunnel Segment Production Monitoring System

> A sourced UK public sector contract award published by Sizewell C Limited.

## Key facts

- Buyer: Sizewell C Limited
- Tender value: £500,000
- Published: 6 August 2026
- Contract start: 3 March 2027
- Contract end: 3 December 2034
- Stage: open_tender
- Procurement category: services
- Notice ID: 2375427c-6174-48ea-9bb1-6dca14761f9f-909713
- OCID: ocds-b5fd17-237252c3-1022-40b9-903c-50d898896667

## Description

This project involves the manufacturing, transportation and installation of approximately 39000 precast concrete tunnel segments\. The segments will be produced at Avonmouth tunnel precast factory, transported through a multi-modal logistics network \(truck and train interfaces\), stored across 4 facilities \(TPF, Railhead, ACA and TLC\), ultimately installed within three TBMs serving two intake tunnels and one outfall tunnel configuration\. This operation requires complete end-to-end visibility from the moment a segment is cast until it is installed within the tunnel structure\. Currently, critical gaps exist in reporting, quality traceability, inventory discrepancies, and segment tracking across the supply chain\. A comprehensive traceability system is essential to manage the entire lifecycle, prevent installation errors, ensure quality compliance, eliminate segment duplication, and maintain supply chain transparency across all stakeholders\.

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## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/2375427c-6174-48ea-9bb1-6dca14761f9f-909713)