Award

Ask AI about this notice

Summarise, research or assess it with AI

View Markdown

Share this notice

Send this contract to a colleague

Underwater Pipeline Crossing Surveys & Remedial Works

NORTHERN GAS NETWORKS LIMITED

This public procurement record has 1 release in its history.

Award

15 Sep 2026 at 13:46

UK6 - Contract Award Notice
Summary of the contracting process

Northern Gas Networks Limited procured specialist underwater pipeline crossing survey, assessment and remedial works across its gas distribution network. The requirement covers river crossings and associated watercourses, including measuring pipeline cover depths and profiles; identifying changes to riverbeds, banks and channels; confirming pipeline locations through topographical and hydrographic surveys; assessing erosion, scour, exposure and pipeline condition; and inspecting exposed sections. It can also include Close Interval Polarised Potential surveys and other corrosion monitoring. The supplier must produce reports explaining methods, findings, risks and recommended mitigation or remedial action. The work supports the safety, integrity, maintenance and resilience of gas pipeline infrastructure across Northern Gas Networks’ geographical operating area. The main service categories are underwater pipeline work, topographical and hydrographic surveying, and commercial diving.

The procurement is complete and the contract was awarded to Northern Divers (Engineering) Limited. Northern Gas Networks used a selective competitive flexible procedure under the utilities regime. The award date was 15 September 2026 and the awarded value is £1,080,000 gross. The contract period runs from 1 November 2026 to 31 October 2028, with an option for Northern Gas Networks to extend the agreement by three one-year periods, to a maximum extent date of 31 October 2031. One lot was awarded. The requirement was evaluated through the competitive procedure, which selected the appointed specialist supplier. A contract signature milestone was scheduled for 1 November 2026. The award is active and the tender status is complete.

This award demonstrates established demand from a gas network operator for specialist river-crossing pipeline integrity work combining underwater inspection, diving, hydrographic and topographical surveying, geomorphological assessment, corrosion monitoring and remedial construction. Suppliers seeking to compete for comparable work with Northern Gas Networks would need credible capability across these disciplines, with the equipment and suitably experienced personnel to work in rivers and other watercourses. They would also need to interpret pipeline cover, bed and bank levels, erosion, scour, exposure and asset condition, then turn findings into clear engineering reports and practical risk-mitigation recommendations. Experience of working safely around operational gas infrastructure, managing environmental and engineering constraints, and delivering both surveys and follow-on remedial works would be commercially relevant. The requirement suits specialist engineering, diving and infrastructure-integrity businesses, including capable small and medium-sized enterprises.

How relevant is this notice?

Notice Information

Notice Title

Underwater Pipeline Crossing Surveys & Remedial Works

Notice Description

Northern Gas Networks (NGN) requires the provision of specialist river crossing survey and assessment services across its gas distribution network to monitor the condition, integrity, and ongoing safety of pipeline assets located within river crossings and associated watercourses. The scope of services includes, but is not limited to: - Determination of pipeline cover depths and profiles within river crossings. - Identification and assessment of changes to riverbeds, banks, and watercourses that may affect pipeline integrity or stability. - Confirmation of pipeline locations through topographical and hydrographic survey techniques, supported by geomorphological assessments where required. - Surveying of riverbed and bank levels to identify erosion, scour, exposure, or other changes in condition. - Inspection and assessment of exposed pipeline sections. - Evaluation of the condition and construction of riverbeds, banks, and associated crossing infrastructure. - Close Interval Polarised Potential (CIPP) Surveys and other corrosion monitoring activities where specified by NGN. The appointed supplier shall provide comprehensive survey reports detailing the methodology employed, survey findings, identified risks, and recommendations for any remedial or risk mitigation measures. Where required, the contract may also include the provision of remedial works arising from survey findings to maintain the safety, integrity, and operational performance of the pipeline network. This procurement seeks to establish a contract for the delivery of these specialist services across NGN's geographical operating area, ensuring the continued monitoring, assessment, maintenance, and protection of pipeline river crossings. The contract will support NGN in maintaining compliance with applicable engineering, environmental, and safety requirements while ensuring the long-term resilience and integrity of its gas distribution infrastructure.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06fa27
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/087314-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK6 - Contract Award Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Selective
Procurement Method Details
Competitive flexible procedure
Tender Suitability
Not specified
Awardee Scale
SME

Common Procurement Vocabulary (CPV)

CPV Divisions

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

71 - Architectural, construction, engineering and inspection services

98 - Other community, social and personal services

CPV Codes

44161400 - Underwater pipeline

71351810 - Topographical services

71354400 - Hydrographic services

98363000 - Diving services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
£1,080,000 £1M-£10M
Contracts Value
Not specified

Notice Dates

Publication Date
15 Sep 2026Today
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
15 Sep 2026Yesterday
Contract Period
1 Nov 2026 - 31 Oct 2028 2-3 years
Recurrence
Not specified

Notice Status

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

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
NORTHERN GAS NETWORKS 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
COLTON LEEDS
Postcode
LS15 8TU
Postcode Area
Leeds
Country
England
Major Region (ITL 1)
TLE Yorkshire and The Humber
Basic Region (ITL 2)
TLE4 West Yorkshire
Small Region (ITL 3)
TLE42 Leeds
Delivery Location
Not specified
Local Authority
Leeds
Electoral Ward
Garforth & Swillington
Westminster Constituency
Leeds East

Supplier Information

Number of Suppliers
1
Supplier Name

NORTHERN DIVERS (ENGINEERING) LIMITED

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...