Tender

Ask AI about this notice

Summarise, research or assess it with AI

View Markdown

Share this notice

Send this contract to a colleague

Tunnel Segment Production Monitoring System

Sizewell C Limited

This public procurement record has 1 release in its history.

Tender

06 Aug 2026 at 13:50

Tender Notice
Summary of the contracting process

Sizewell C Limited is procuring a tunnel segment production monitoring and traceability system, classified under CPV 45221247 for tunnelling works. The requirement supports the manufacture, transport, storage and installation of approximately 39,000 precast concrete tunnel segments. Segments will be produced at the Avonmouth tunnel precast factory, moved through truck and rail interfaces, stored at four facilities—TPF, Railhead, ACA and TLC—and installed using three tunnel boring machines serving two intake tunnels and one outfall tunnel. The service is intended to provide end-to-end visibility from casting through installation, improving reporting, quality traceability, inventory control, segment tracking and supply-chain transparency across the operation. Delivery spans London, the South West and the South East of England.

The procurement reached the tender stage, at which Sizewell C Limited invited suppliers to submit offers. The tender deadline set by the buyer was 14 August 2026 at 17:00 UK time. The planned contract period runs from 3 March 2027 to 3 December 2034. The estimated contract value is between £250,000 and £500,000. This is a services procurement for a monitoring and traceability system supporting tunnelling operations. The requirement is presented as unsuitable for small and medium-sized enterprises and voluntary, community or social enterprises. The tender concerns one overall requirement covering the production, logistics, storage and installation lifecycle of the tunnel segments.

This opportunity suits suppliers able to design, implement and support end-to-end production monitoring, asset traceability and supply-chain visibility systems for complex infrastructure operations. Relevant capability includes tracking individual precast components from manufacture to installation, maintaining reliable quality and compliance records, reconciling inventory across several storage locations, and providing accurate reporting to multiple stakeholders. Suppliers should be able to integrate information from factory production, road and rail logistics, storage facilities and tunnel boring machine installation activities. Experience in tunnelling, major construction, precast concrete manufacturing, industrial logistics or similarly controlled, multi-site environments would be commercially relevant. The scale and complexity favour established providers with the capacity to support a long-term operational system across several locations and delivery interfaces.

How relevant is this notice?

Notice Information

Notice Title

Tunnel Segment Production Monitoring System

Notice 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.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-237252c3-1022-40b9-903c-50d898896667
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/2375427c-6174-48ea-9bb1-6dca14761f9f
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
Tender Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Not Specified
Procurement Method Details
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45221247 - Tunnelling works

Notice Value(s)

Tender Value
£500,000 £500K-£1M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
6 Aug 20262 months ago
Submission Deadline
14 Aug 2026Expired
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
3 Mar 2027 - 3 Dec 2034 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Not Specified
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Sizewell C Limited
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
W1T 4EZ
Postcode Area
West London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI36 Camden
Delivery Location
TLI London, TLJ South East (England), TLK South West (England)
Local Authority
Camden
Electoral Ward
Bloomsbury
Westminster Constituency
Holborn and St Pancras

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

JSON Markdown

The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

Loading OCDS record...