Joydeep Bhattacharya’s Post

Automatic closure of Maeslant barrier at designed 3 meter above NAP level (zero is about equal to average sea level in North Sea) !!!

Ok so history was made last night in the Netherlands - late last night my Dutch friends and colleagues at Rijkswaterstaat were taking the brunt of #stormpia. Winds blowing across the north sea resulted in surges across their coastal defences with the Maeslantkering (Maeslant barrier) being closed in anger for the first time in its history to protect Rotterdam against a forecast storm surge of +3.17m NAP. Peter Vlam and his team were calm and professional in the first official deployment of the barrier monitoring the computer system known as 'BOS' and co-ordinating with the Port of Rotterdam ensuring the navigational traffic was stopped allowing the barrier to close. The barrier was closed at 20:10 with water levels rising to +3.34m NAP on the downward side of the barrier preventing a forecast level of +3.17m NAP of water in Rotterdam; some 170mm above the operational closure level of the barrier. The team successfully managed the closure through the night re-opening the barrier around 03:00 this morning and reinstating navigational traffic to the Port of Rotterdam. This barrier is the largest barrier with a ball-shaped joint hinge in the world, with the hinge diameter measuring 10 metres, and weighing 680 tonnes. The construction of the barrier cost 450 million euro and is the height of the Eiffel Tower - each side. More information can be found here on the structure - https://lnkd.in/enwncJMJ Well done to the team and everyone involved in ensuring we protect people and infrastructure. Often the unsung heroes working in the middle of the night when most are asleep not knowing how they are being protected. I wish you all a safe and well recovery from the event and a less 'excitable' Christmas and New Year. Credit to Jurjen van der Most for the photo. #stormsurge #stormsurgebarrier #Maeslantkering #climatemitigation #infrastructure #engineering #engineeringexcellence #netherlands #rotterdam #istorm Institution of Civil Engineers (ICE) Environment Agency I-STORM International US Army Corps of Engineers

As sea levels rise, we will see more such deployments. Governments at all levels must stop studying and start executing mitigation projects. Carbon taxes will not stop floods and storm surges. Infrastructure will. #civilengineering #Ports #climatemitigation #sealevelrise

climate adaption investment paying off, this is probably just a simple example but showing the way to what many countries should already be investing to prepare for what is to come.

VESSEL REVIEW: The government of the Occitanie region in southern France recently placed a new trailing suction hopper dredger (TSHD) into service. Built by local shipyard Piriou, the 70- by 16.7-metre (230- by 54.8-foot) 'Hydromer' was designed by the French office of Norwegian naval architecture firm LMG Marin in cooperation with Piriou Ingenierie. It has since replaced an older, lower-capacity dredger in the same owner’s fleet as part of an initiative that seeks to make the Occitanie region a “positive energy” region by 2050. The owner called for improved dredging performance courtesy of a larger suction pump size and greater total dredging arm length. The incorporation of two dredging arms would allow for optimised performance at various water depths. Suitability for coastal protection was another requirement since the owner’s earlier dredger did not possess this capability, thus necessitating the delegation of works to external contractors. As it will be used primarily in channels and port areas, the TSHD also needed to be capable of high manoeuvring performance and improved seakeeping and positioning regardless of wind and currents. The owner also requested that the vessel be capable of transit speeds of at least 10 knots at design draught and 11 knots empty even under Sea State two conditions. The installation of the hydrogen system was also among the first of the owner’s requirements to be specified. Onboard space needed to be available for four 20-foot compressed hydrogen storage containers, a hydrogen transfer system, and a fuel cell with a capacity of at least 200 kW. Full article link in comments.

VESSEL REVIEW: The government of the Occitanie region in southern France recently placed a new trailing suction hopper dredger (TSHD) into service. Built by local shipyard Piriou, the 70- by 16.7-metre (230- by 54.8-foot) 'Hydromer' was designed by the French office of Norwegian naval architecture firm LMG Marin in cooperation with Piriou Ingenierie. It has since replaced an older, lower-capacity dredger in the same owner’s fleet as part of an initiative that seeks to make the Occitanie region a “positive energy” region by 2050. The owner called for improved dredging performance courtesy of a larger suction pump size and greater total dredging arm length. The incorporation of two dredging arms would allow for optimised performance at various water depths. Suitability for coastal protection was another requirement since the owner’s earlier dredger did not possess this capability, thus necessitating the delegation of works to external contractors. As it will be used primarily in channels and port areas, the TSHD also needed to be capable of high manoeuvring performance and improved seakeeping and positioning regardless of wind and currents. The owner also requested that the vessel be capable of transit speeds of at least 10 knots at design draught and 11 knots empty even under Sea State two conditions. The installation of the hydrogen system was also among the first of the owner’s requirements to be specified. Onboard space needed to be available for four 20-foot compressed hydrogen storage containers, a hydrogen transfer system, and a fuel cell with a capacity of at least 200 kW. Full article link in comments.

With an inauguration by Dutch Minister Harbers of the Ministry of Infrastructure and Water Management, alongside representatives of Rijkswaterstaat and local authorities, a milestone was recently achieved in Spijk, the Netherlands: the official opening of the overnight harbor. 🚢 A project that not only strengthens maritime infrastructure but also significantly enhances the safety of inland skippers. 🛡️ One of the notable aspects of this harbor is the integration of our high-quality fire suppression systems. 💦🔥 With two pump rooms, each equipped with a diesel-driven vertical turbine pump with a capacity of 360 m3/h per pump, a robust firewater supply is ensured. These facilities, installed at two mooring docks, provide reassuring protection for the inland skippers using the harbor. 🌊 What makes this project even more remarkable is the precise customization approach we have employed. The dimensions of the pump rooms had to perfectly fit the available space on the docks. Thanks to our expertise, these specific requirements were expertly met, seamlessly integrating the installation into the harbor infrastructure. 🏗️ #Infrastructure #Maritime #Innovation #Engineering #Firefighting

🌱🌱 WHO YOU'RE GONNA CALL? 🌱 Are you seeking a comprehensive assessment to green your Port? Do you want to reduce emissions across your entire fleet? Curious about accessing "green finance" for your projects? Seeking a one-stop-shop service for Naval Architecture, Marine Engineering, Environmental Impact, ROI Analysis, and Financing? Look no further. Now you know who you're gonna call. Let's make sustainability your advantage. 🌍💼 #ConsultancyServices #SustainableSolutions #GreenPort #MaritimeEmissions #GreenFinance

Submarine construction systems promote the integration of structures resistant to hydrostatic pressure, allowing efficient energy generation in underwater environments.

Let's learn about the Panama Canal. Key Engineering Features: -T Cranes: Ingenious steam-powered cranes moved by locomotives to facilitate construction. -Gravity-Based System: Utilising gates and chambers for the gravity-driven lifting and lowering of ships. Strategic Construction Approach: -Terrain Modification: Instead of complete excavation, engineers strategically removed portions of mountains. -Narrow Passage: Successful creation of a narrow passage connecting the Atlantic and Pacific Oceans. Importance of the Panama Canal: -Significance: Saves ships a substantial 20,000-kilometer travel distance. Water Management: -Gatun Lake: Dependence on Gatun Lake, fed by the Chagres River. -2019 Drought: Highlights vulnerability and the need for sustainable water levels. Historical Achievement: -Miter Locks: Timeless design by Leonardo da Vinci, ensuring watertight joints. Transit Process for Ships: -Guided Transit: Ships guided by tugboats and electric locomotives through the lock chambers. -Ship Alignment: Importance of turning off ship propellers and using tugboats for precise alignment. Panama Canal is truly an engineering brilliance of historical significance. #maritime #maritimeindustry #shippingindustry #shipsandshipping #marineengineering #mechanicalengineering #navalarchitecture #engineering