Scope
Reference
FA08-19
Description
Project Scope:
- The objective of this project is to reduce nitrogen loadings in the Teesmouth and Cleveland Coast Special Protection Area (SPA) by 1st April 2030. This will be achieved by removing the Bran Sands discharge from the River Tees and discharging directly to the North Sea to improve dispersion and dilution.
- A Long Sea Outfall for Bran Sands has been supported and approved by Ofwat in the final determination of NWG's PR24 (business plan).
- The Levelling Up and Regeneration Act (2023) requires Technically Achievable Limit of Total Nitrogen of 10mg/l at 'designated STWs' that serve a population equivalent of more than 2,000 people by 1 April 2030 and are within the Nutrient Neutrality area.
- To deliver this, the driver was included in the Water Industry National Environment Programme (WINEP) under the Habitats Directive for Nutrient Neutrality.
Project Brief - Option Detail:
- The project indicatively consists of three works packages outlined below:
- Onshore Headworks/Pumping Station
- Onshore pipeline - 3km 2m diameter
- Offshore pipeline - 4.5km 2m diameter
The packages may be tendered and awarded individually or in combination.
Types of work under the packages may include (but are not limited to):
- Design of pumped marine outfall pipeline systems
- Early Contractor Involvement and/or Works Contractor(s)
- Onshore environmental, geotechnical and geophysical surveys
- Offshore environmental, geotechnical and geophysical surveys
- Onshore tunnelling (tbc)
- Offshore tunnelling (tbc)
- Flow collection chamber/Pumping station and/or Headworks pumping station - civil, mechanical, electrical and ICA
- Dredged outfall installation - long length large diameter PE with concrete ballast
- Marine structures - outfall diffuser and diffuser protection
Total value (estimated)
- £200,000,000 excluding VAT
- £240,000,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 31 October 2026 to 31 March 2030
- 3 years, 5 months, 1 day
Main procurement category
Works
CPV classifications
- 44161400 - Underwater pipeline
- 44161410 - Subsea pipelines
- 44162300 - Outfall piping
- 44163130 - Sewer pipes
- 45221247 - Tunnelling works
- 45231100 - General construction work for pipelines
- 45231300 - Construction work for water and sewage pipelines
- 45232152 - Pumping station construction work
- 45232400 - Sewer construction work
- 45232410 - Sewerage work
- 45232411 - Foul-water piping construction work
- 45232420 - Sewage work
- 45232421 - Sewage treatment works
- 45232423 - Sewage pumping stations construction work
- 45232424 - Sewage outfall construction work
- 45232431 - Wastewater pumping station
- 45232440 - Construction work for sewage pipes
- 45252124 - Dredging and pumping works
- 71311100 - Civil engineering support services
- 71311300 - Infrastructure works consultancy services
- 71313400 - Environmental impact assessment for construction
- 71322200 - Pipeline-design services
- 71332000 - Geotechnical engineering services
- 71351200 - Geological and geophysical consultancy services
- 71351210 - Geophysical consultancy services
- 71351220 - Geological consultancy services
- 71351500 - Ground investigation services
- 71351810 - Topographical services
- 71351900 - Geology, oceanography and hydrology services
- 71351910 - Geology services
- 71354500 - Marine survey services
Contract locations
- UKC - North East (England)
Engagement
Engagement deadline
20 August 2025
Engagement process description
General Information:
It is mandatory for any interested suppliers to register on the new CENTRAL DIGITAL PLATFORM which is part of the enhanced Find a Tender Service (Procurement Act 2023).
NWG welcomes interest from all suitable contractors / suppliers
Contractors may have expertise in any of the three distinct packages of work.
At this stage, NWG expect individual entity responses to this notice. Once procurement strategy has been defined, it is appreciated that delivery approaches may involve responses from JVs/Consortium
Project Brief - Option Detail:
The project indicatively consists of three works packages:
- Onshore Headworks/Pumping Station
- Onshore pipeline - 3km 2m diameter
- Offshore pipeline - 4.5km 2m diameter
Aims of Market Engagement:
- Understand current market conditions and appetite for schemes of this nature
- Understanding supplier's capability and capacity to deliver schemes of this nature
- Understand and develop the procurement strategy for the project, which could include exclusive use of the Client's established framework partners or a mix of Client's framework partners and open market competition
- Reviewing how work could be packaged and advertised to the market (i.e splitting into lots, advertising as one scheme etc) to deliver best value
- Seeking feedback from the market to understand how NWG can be an attractive client, ensuring the procurement process is proportionate to the size and complexity of the project
Market Engagement Process:
- Initial Conditions of Participation to exclude any suppliers who are on Debarment List or are not registered on Central Digital Platform
- Completion of contractor questionnaire via Microsoft Forms requesting information on contractor capabilities, previous experience of a similar nature, how contractors can add value to the market engagement process
- NWG will review questionnaire returns and select the most suitable suppliers to attend the engagement session. Preference will be given to those suppliers with a recent demonstrable track record of delivering long length large-diameter outfall pipeline projects (or part thereof) of this nature
- In-person workshop / round table session with all invited participants (expect to invite c15). Date to be confirmed to shortlisted suppliers once known
- Upon completion of market engagement, the Client will develop a procurement strategy to deliver the project, if this results in an open market competition, any material shared during the engagement process will be included within the tender documents.
Call to Action:
Expressions of interest to complete the questionnaire must be sent to the e-mail address amp8procurement@nwl.co.uk before the deadline date of 20/08/2025 at Midday. Once the expression of interest window has closed, a link to the questionnaire will be sent to the email address you provide on 21/08/2025.
The deadline for completing the questionnaire is 04/09/2025 at 5pm.
When sending expression of interest, applicants must provide the following information:
1) Full company name,
2) Key contact (name, email address to receive the questionnaire link, mobile number)
3) Type of company:
- D&C organisation,
- Specialist service provider (please detail: eg Tunnelling (offshore/onshore)/Specialist Surveys/Marine Structures),
- Other (please detail)
Those suppliers selected for further engagement may be invited to an in-person workshop on Tuesday 16th September. Further details will be provided following receipt of questionnaires.
Submission
Publication date of tender notice (estimated)
2 March 2026
Procedure
Special regime
Utilities
Contracting authority
NORTHUMBRIAN WATER LIMITED
- Companies House: 02366703
- Public Procurement Organisation Number: PRLG-5541-VHHG
Northumbria House
Pity Me
DH1 5FJ
United Kingdom
Contact name: Holli Crawford
Email: AMP8Procurement@nwl.co.uk
Region: UKC14 - Durham CC
Organisation type: Private utility