Who won: ​​​Underwater Pipeline Crossing Surveys & Remedial Works​​

About this contract

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

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