---
title: "Southern Water Andover Link Main (ALM) Pipeline Construction & Connection"
ocid: "ocds-h6vhtk-05d7db"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d7db"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d7db.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d7db.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "SOUTHERN WATER SERVICES LIMITED"
published: "2025-10-31"
---

# Southern Water Andover Link Main (ALM) Pipeline Construction & Connection

Buyer: SOUTHERN WATER SERVICES LIMITED  
Current stage: Planning  
OCID: ocds-h6vhtk-05d7db

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## Summary

Southern Water Services Limited, operating under the Major Projects Directorate, has initiated the planning phase of the Southern Water Andover Link Main (ALM) Pipeline Construction & Connection project. This £25km below-ground pipeline, intended to enhance environmental protection for the rivers Test and Itchen, is part of the Water Resources Management Plan (WRMP). The project's procurement strategy involves appointing a single Principal Contractor to design and build, which will include enabling works prior to construction. The initiative is currently in the planning stage, with market engagement scheduled to conclude by 19th December 2025. The project is located in the United Kingdom and Czechia and involves works related to water-distribution pipelines, civil engineering support services, and construction equipment.

This procurement presents significant opportunities for businesses within the infrastructure, engineering, and water management sectors, particularly those capable of providing civils, groundworks, and specialized drilling services. SMEs and VCSEs are encouraged to engage, as this project requires a broad range of services tied to pipeline installation and infrastructure development. The initiative promotes Tier 2 supply chain involvement, allowing businesses to register their interest and demonstrate their capability to contribute to this critical infrastructure project. This could prove beneficial for companies looking to expand their footprint in the utilities sector, fostering long-term growth through participation in significant environmental enhancement initiatives.

## Notice

The Andover Link Main (ALM) scheme is being delivered by Southern Water Services (SWS) under the Major Projects Directorate. The ALM project is part of the WRMP programme and is associated with SWS's agreement with the EA under Section 20 of the Water Resources Act 1991 put in place following Public Inquiry to reduce our abstraction licenses for public water supply. Its purpose is to provide environmental protection for the rivers Test and Itchen. The WRMP Programme aims to create greater resilience to water shortages, especially during dry weather and droughts. Existing abstraction licences for the River Test and River Itchen have been substantially reduced through changes required by the Environment Agency to protect the rivers, both designated as Sites of Special Scientific Interest (SSSI), and the River Itchen as Special Area of Conservation (SAC). Additional licence changes will bring further reductions. These rivers are key examples of rare chalk stream habitat which support a wide variety of species. The Proposed Scheme will support environmental improvement by increasing the protection of these rivers while addressing the need for secure water supply. The ALM scheme involves approximately 25km of below-ground pipeline connecting critical infrastructure between Winchester and Andover, alongside upgrades to existing and new booster stations. It aims to deliver a bi-directional transfer capacity of 15Ml/d by March 2030, ensuring both strategic drought resilience and operational reliability for the isolated Andover Water Resource Zone (WRZ). SWS delivery strategy is to appoint a single Principal Contractor to design and build Andover Link Main, delivery to inclue detailed design and construction package with enabling work to be completed prior to construction. The Principal Contractor will act as a Tier 1 provider and sub-contract specialist elements such as Horizontal Directional Drilling (HDD), this strategy is to reduce risk of interdependency issues in construction, testing and commissioning. We understand the current market status of the Tier 2 requirements including Civils Groundworks Temporary site works PE Pipe Pipe fittings Plant tools and equipment (welding, excavation etc) Specialist HDD Equipment and Pipe-Jacking Machines MCCs Pumps is stretched as we enter this significant investment period for water and other infrastructure. To support the success of our ALM scheme we are conducting a market engagement exercise that invites the Tier 2 supply chain to register their interest in supporting our Tier 1's in delivering the scheme https://southernwater.ukp.app.jaggaer.com/esop/guest/go/opportunity/detail?opportunityId=59781

### Planning Information

The timely delivery of Andover Link Main is critical to us achieving our WRMP programme and is associated with SWS’s agreement with the EA under Section 20 of the Water Resources Act 1991. Our strategy is to is to appoint a single Principal Contractor to design and build Andover Link Main. The Principal Contractor will act as a Tier 1 provider and sub-contract specialist elements such as Horizontal Directional Drilling (HDD), this strategy is to reduce risk of interdependency issues in construction, testing and commissioning. 
We understand the current market status of the Tier 2 requirements including
Civils
Groundworks
Temporary site works
PE Pipe
Pipe fittings
Plant tools and equipment (welding, excavation etc)
Specialist HDD Equipment and Pipe-Jacking Machines
MCCs
Pumps
is stretched as we enter this significant investment period for water and other infrastructure. To support the success of our ALM scheme we are conducting a market engagement exercise that invites the Tier 2 supply chain to register their interest in supporting our Tier 1’s in delivering the scheme. By responding to this request you are confirming you have the requisite experience and are competent in delivering similar Projects.
Please note this will not constitute an approved or preferred supplier list from SWS and we will not be verifying any company credentials. Any appointment by our Tier 1 providers will require you to meet their supplier accreditation process and relevant due diligence, which is aligned with SWS supplier code of conduct. We will also request of our Tier 1 Contractors bidding they do not sign up exclusive agreements with any Tier 2 partner until contract award has been executed.
If you wish to be entered onto the ALM Tier 2 Supply Chain register please contact Kirsty Lodge at Southern Water. Kirsty.lodge@southernwater.co.uk
Please include your company name, company number, high level brief of your organisation’s capability, contact details (email and phone) and if appropriate current lead times.
We may undertake engagement sessions with those registered to fully understand the Tier 2 market conditions. We may also apply this list to other SWS Major Projects.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/070042-2025 |
| Notice type | UK2 - Preliminary Market Engagement Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | SME, VCSE |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 31 Oct 2025 |
| Submission deadline | Not specified |
| Future notice date | 19 Dec 2025 |
| Award date | Not specified |
| Contract period | 30 Jun 2026 - 31 Mar 2030 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planning |
| Lots status | Planning |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SOUTHERN WATER SERVICES LIMITED |
| Locality | WORTHING |
| Post town | Brighton |
| Postcode | BN13 3NX |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ2 Surrey, East and West Sussex |
| ITL 3 | TLJ27 West Sussex (South West) |
| Local authority | Worthing |
| Electoral ward | Northbrook |
| Westminster constituency | Worthing West |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 42 - Industrial machinery
- 43 - Machinery for mining, quarrying, construction equipment
- 44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)
- 45 - Construction work
- 71 - Architectural, construction, engineering and inspection services

### Codes

- 31682210 - Instrumentation and control equipment
- 42122130 - Water pumps
- 42131144 - Process-control valves
- 43130000 - Drilling equipment
- 43300000 - Construction machinery and equipment
- 44100000 - Construction materials and associated items
- 44160000 - Pipeline, piping, pipes, casing, tubing and related items
- 44162500 - Drinking-water piping
- 44163000 - Pipes and fittings
- 45111200 - Site preparation and clearance work
- 45232100 - Ancillary works for water pipelines
- 45232150 - Works related to water-distribution pipelines
- 45252110 - Mobile plant construction work
- 71311100 - Civil engineering support services

## Release History

- 31 Oct 2025 at 11:55 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/070042-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/070042-2025
  31st October 2025 - Preliminary market engagement notice on Find a Tender

## Notice URLs

- http://www.southernwater.co.uk
- https://southernwater.ukp.app.jaggaer.com/esop/guest/go/opportunity/detail?opportunityId=59781
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d7db. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d7db.json.