Quality and experience from demanding marine projects. Special expertise in caissons and deepwater foundations.

When it comes to building solid and durable bridge foundations in the sea, specialised expertise, the right equipment, and in-depth knowledge of complex underwater ground conditions are required. The marine contractor has extensive experience with foundation work for bridges and other large structures in demanding marine environments. We offer complete and customised solutions for bridge foundation work, including advanced methods such as the use of caissons, drilling, blasting, reinforcement, and casting – even at great depths.
Caissons are a highly effective method for establishing stable bridge foundations in sea and river environments, even on challenging ground and at great water depths. Our professionals have long experience in the design, manufacture, and installation of caissons, and can take on the entire process from planning to completed foundation. This ensures safety and quality at every stage, and guarantees that the bridge foundations stand firm for generations – regardless of external stresses from currents, waves, and ice.
We take responsibility for the entire foundation work in the sea, from the initial ground investigations and planning, to the fully installed bridge foundation. This includes:
Our experience with demanding projects ensures efficient execution, high safety – and minimal impact on the marine environment.
By choosing a partner with specialised expertise in marine bridge foundations and the use of caissons, you ensure:
Contact us for a non-binding discussion about your project. We deliver marine bridge foundations that stand the test of time – setting a new standard for quality, precision and innovation in foundation engineering.
We at Sjøentreprenøren have high standards for the safety work carried out at the workplaces. Systematic follow-up and dedicated personnel ensure that we always work safely


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