Landfalls and outfalls
We are the UK’s specialist national contractor for earthmoving, crushing & recycling, and flood, coast & marine defence works.
Protection and reinstating in environmentally sensitive coastal zones
Landfalls provide the critical connection between offshore assets, such as cables and pipelines, and onshore infrastructure. OEC delivers these works with precision, undertaking excavation, protection and full reinstatement within environmentally sensitive coastal zones.
Outfall construction demands exact installation and effective scour protection to ensure reliable discharge and long-term performance. OEC undertakes coastal and marine outfall works including trench excavation, pipe installation and the placement of rock protection systems. All works are executed in line with hydraulic design specifications, with armourstone installed to safeguard against erosion and structural undermining.
Highly experienced at working within constrained tidal windows, our teams deliver controlled excavation, installation and backfilling to strict tolerances. Careful level management and reinstatement ensure both structural integrity and minimal environmental impact across the marine interface. Through this approach, we sustain coastal stability, protect critical onshore infrastructure and enhance environmental compliance through disciplined sediment and material control.
With one of the most modern fleets in the sector, OEC continues to invest in low-emission, hybrid and Stage V compliant plant. This reduces carbon output, fuel consumption and noise, enabling more sustainable operations in sensitive coastal and urban environments without compromising performance.
Our highly experienced operators, many with decades of marine and coastal expertise, provide the consistency and precision required in these demanding conditions. Their understanding of tidal behaviour, ground conditions and accurate material placement is essential to maintaining safety, programme certainty and build quality.
OEC delivers landfall and outfall construction that is technically robust, environmentally responsible and fully aligned with programme requirements.
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Ovenden Earthmoving Co Ltd (OEC) delivers landfall and outfall construction across the UK, including trench excavation, duct and pipeline installation, rock armour scour protection, backfilling and full reinstatement works within intertidal and coastal environments.
OEC works to strict hydraulic and engineering specifications using controlled excavation, precise level management and engineered rock protection systems. Works are sequenced around tidal constraints to ensure structural integrity, minimise environmental impact and maintain long-term stability at the marine interface.
OEC plans landfall and outfall works around tidal windows to ensure safe, controlled execution of excavation, installation and reinstatement activities. We use disciplined sequencing, clearly defined working corridors and experienced coastal operators to maintain accuracy within tight tolerances while minimising environmental disturbance. Sediment control measures, rock protection systems and strict compliance with marine environmental requirements ensure long-term stability and protection of both offshore and onshore assets.