HS2 Infrastructure
Enabling and Multi Utility Diversion Works
Project Location:
Various
Client Name:
HS2 - NGED / Align JV / EKFB
Project Description:
OCU is delivering essential utility diversions as part of one of the UK’s most complex infrastructure undertakings. Our Water and HDD teams have led the delivery of strategic diversions across water, gas, power and telecoms, applying our NIRS, GIRS and WIRS accreditations to ensure works are completed to the highest industry standards.
From deep excavations to highly constrained working environments, OCU’s collaborative approach, in-house engineering expertise and programme-led delivery model have enabled the safe and timely execution of critical enabling works for the wider rail infrastructure.
Key Stats:
• 12 HDD bores drilled onto a single diversion
• Deepest shaft: 12m deep, 5m diameter
• Longest HDD on HS2: 1000m (500mm diameter)
• Largest water main diverted: 1200mm diameter
5 Years+
Duration
Challenge
• Delivering works within the UK’s largest infrastructure project
• Limited space for axle movements for mobilising equipment
• Programme integration with multiple parties across each section and crossing
• Changes in Tier 1 partners (JV) mid-project, requiring re-inductions and onboarding
• Multi-disciplinary teams required to carry out concurrent multiutility diversions and maximise project efficiency
Solution
• Our teams are highly experienced in managing complex, largescale projects across energy, utilities and digital infrastructure
• Efficient scheduling of activities minimises local disruption while maximising site productivity
• Market-leading P6 planners integrate our programmes into broader project scopes, aligning with key milestones and constraints
• Our workforce is supported by dedicated training academies to ensure we have the best training and capabilities available for every task
Outcome
• OCU remains a trusted delivery partner to multiple HS2 joint ventures
• Works consistently delivered on time and to specification through a programme-led model
• Our teams demonstrated resilience and adaptability in a highpressure, fast-changing environment
• Continued recognition as a reliable supplier by major regulated utilities across the UK
