Backhoe dredger A large hydraulic excavating machine positioned on the end of a pontoon. The pontoon is held firmly in place using spuds. Backhoes can dredge in a range of soil types with extreme precision
Ballast water Ballast water in ships is used to improve depth, stability and strength when the ship is not fully loaded. Ballast water discharges by ships can have a negative impact on the marine environment.
Building with Nature Innovation program focused on the development of new design concepts for river, coastal and delta areas. The aim of the program is to investigate the best approach to strengthen the interaction between human activities and nature.
CO2 Carbon dioxide is an odorless and colorless gas and exists in the earth’s atmosphere. Carbon dioxide is a greenhouse gas (source Wikipedia).
CSR Netherlands CSR Netherlands is a network of Dutch companies, authorities and NGOs that are striving towards corporate social responsibility. More than 200 companies are affiliated with this networking organization.
Cutter See cutter suction dredger.
Decommission To dismantle and/or remove oil and gas rigs which have been taken out of service permanently.
EuDA (European Dredging Association) Non-profit industry associaton for European dredging companies and related organizations.
EPC Engineering, procurement and construction services.
Green valve A system to exclude air bubbles from the excess water during the overflow from the hold of a trailing suction hopper dredger. The excess water contains fine sediment. Through the use of green valves the sediment more rapidly reaches the bottom, decreasing the turbidity in the water column.
HFO Heavy Fuel Oil.
Hopper/hopper dredger See trailing suction hopper dredger
IADC (International Association of Dredging Companies) Global umbrella organization for private dredging contractors.
IMO The International Maritime Organization is a specialized agency of the United Nations. The IMO’s primary purpose is to develop and maintain a comprehensive regulatory framework for safe and substainable shipping.
ISM-Code International Safety Management Code for the Safe Operations of Ships and for Pollution Prevention: an international standard for compliance with safety regulations and the prevention of pollution on sea-going vessels. The ISM-code requires ship managers to implement and maintain a safety management system.
ISO standard Standards of the International Organization for Standardization; the global federation of national normalization organizations that issues standard requirements for, amongst other things, quality management systems (ISO-9001) and environmental management systems (ISO-14001).
LNG Liquefied Natural Gas.
LTI (Lost Time Injury) Expresses the number of workplace accidents serious enough to result in absence from work.
LTIF (Lost Time Injury Frequency) Lost Time Injury Frequency. Expresses the number of workplace accidents serious enough to result in absence from work, per 200,000 hours worked. MDO/MGO Marine Diesel Oil/Marine Gas Oil.
NINA (No Injuries, No Accidents) In a bid to achieve an incident and accident-free working environment Boskalis applies the NINA safety program. NINA sets out Boskalis’ vision on safety and describes the safety conduct the company expects from its staff and subcontractors. The program makes people aware of their own responsibility and encourages them to take action in situations which are unsafe.
Room for the River The goal of the Dutch Room for the River Program is to give the rivers in the Netherlands more room to prevent flooding. At more than 30 locations, measures will be taken that provide safety and improve the quality of the immediate surroundings.
Trailing suction hopper dredger A self-propelled unit that loads its well or hopper using centrifugal pumps and pipes that trail over the bed as the ship sails. Trailing suction hopper dredgers can operate independently of other equipment and can transport material over long distances. The dredged material is dumped through flaps or bottom doors, by rainbowing, or pumped onto land using a pipeline.
Cutter suction dredger A vessel that dredges while being held into place using spuds and anchors. This technique combines powerful cutting with suction dredging. Cutter suction dredgers are mainly used where the bed is hard and compact. The dredged material is sometimes loaded into hoppers but is generally pumped to land through a pressure pipeline.
Transparency Benchmark The Transparency benchmark is an annual research on behalf of the Dutch Ministry of Economic Affairs on the content and quality of corporate social responsibility reports of Dutch companies.
TRIR (Total Recordable Injury Rate) Number of accidents (LTI’s), Restricted Work Cases (RWCs) and Medical Treatment Cases (MTCs) per 200,000 hours worked.
Turbidity Turbidity is caused by the sea or riverbed being churned up during dredging activities, which reduces the incidence of light in the water; this can be temporarily detrimental to underwater animal and plant life.
VCA Safety, Health and Environment Checklist for Contractors applicable to our Dutch operating companies.