Solutions
Civil Engineering & Infrastructure Diving Services
Looking for reliable underwater support

What we offer
TUF International supports the full infrastructure project lifecycle — from pre-construction survey and foundation inspection to in-service maintenance, structural repair, and post-construction verification — for bridges, dams, barrages, tunnels, intake structures, water crossings, and marine civil infrastructure across 154+ countries.
Works include foundation inspection, scour assessment, underwater concrete repair, sheet pile inspection, cathodic protection surveys, and anode replacement — all executed to structural engineering specifications with comprehensive documentation compatible with asset management systems.
Underwater structural repair in civil engineering environments demands close coordination between dive teams and the engineers of record, with all works carried out to defined structural specifications and verified through post-works inspection and condition reporting. The accuracy and format of that documentation is increasingly important as infrastructure owners and asset managers move toward digital asset management systems — making the compatibility of underwater survey outputs with existing engineering records a key consideration when selecting a commercial diving contractor. TUF International brings together the technical depth, operational reach, and safety discipline that civil engineering and infrastructure projects demand from a commercial diving contractor.
Civil Engineering Diving Services — Underwater Infrastructure Works
We provide skilled divers for pressurized tunnel environments, supporting excavation, sealing, and installation tasks while maintaining safety under hyperbaric conditions. TUF International’s hyperbaric-trained dive teams support pressurised tunnel construction in compliance with IMCA D 014 and applicable HSE hyperbaric diving regulations — providing diver support for excavation, sealing, and installation in compressed air environments across 154+ countries.
Key Services
Our teams inspect gates, chambers, and mechanical systems for wear, corrosion, or damage, and perform maintenance to keep waterway traffic operating smoothly. TUF International’s hyperbaric-trained dive teams support pressurised tunnel construction in compliance with IMCA D 014 and applicable HSE hyperbaric diving regulations — providing diver support for excavation, sealing, and installation in compressed air environments across 154+ countries.
Key Services
We assess structural integrity, remove debris, and carry out sealing or reinforcement work to maintain safe water control and flow management. TUF International’s dam and weir diving teams deliver structural condition assessments aligned to ICOLD guidelines and national dam safety regulations — providing operators with the evidence needed for safety reports, insurance compliance, and regulatory submissions.
Key Services
From new installations to repairs, we position, secure, and test submerged pipelines and culverts to ensure watertight performance and durability. TUF International installs and rehabilitates culverts and submerged pipelines in concrete, HDPE, brick, and composite materials — using CIPP lining, spray lining, and sectional repair methods to extend asset service life without full excavation.
Key Services
We inspect and clean bridge piers and underwater foundations, removing obstructions, documenting condition, and performing structural repairs where needed. TUF International’s bridge inspection divers produce condition surveys and defect maps for highway, railway, and pedestrian bridge substructures — with scour monitoring and repair works carried out in compliance with relevant bridge inspection standards and local authority requirements.
Key Services
We place and finish concrete in submerged or tidal zones, applying sealing techniques to prevent leakage, improve strength, and extend the service life of structures. All underwater concrete operations comply with EN 206 and relevant structural specifications. TUF International uses anti-washout admixtures, tremie placement methods, and pressure grouting systems appropriate to the structural application — with post-placement NDT and as-built records provided as standard.
Key Services
We turn field data into clear, audit-ready deliverables. High-definition visuals with measurements and annotations, repeatable survey routes, and BIM/GIS-ready datasets support approvals, warranties, and confident asset management. TUF International delivers BIM/GIS-ready datasets, IFC files, georeferenced condition records, and audit-ready inspection reports — produced in formats compatible with client asset management systems and suitable for submission to highway authorities, waterway operators, and dam safety regulators.
Key Services
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