The Dutch have solutions to Rising Seas – Multifunctional Open Flood Barriers with Multiple Matching Concepts – SEFEC’s set-up for Climate Transition 2100

NORTH SEA

SCALE 1 : 1 500 000 = 1 CM AT MAP = 1 500 000 CM = 1 500 M = 15 KM.

Each TRAPEZIUM:

• is part of an Open Sea Defense Barrier in 20/30-meter depth coastal waters.
• consists of a RED, GREEN, and PURPLE triangle shaped basin.
• Each Green triangle median line represents a 400 wide and 30-meter-deep channel, both sides with ’30 m height sheet pile profiles in which seawater flows from RED or Purple basin through Pumped Hydro Reversable Turbines (PHRT), approx. 135 – 150 MW output each.
• Pipelines from/to the pumped hydro turbines Glasfiber Reinforced
• Furthermore, the diked in Green Triangle can be used for agriculture, forestry, glass houses and cattle and poultry breeding.
• On top of each PHRT-caisson on concrete tower wind turbine built 135-meter height with a power output of 16MW each. Up in the tower some concrete 30 cubic meter prefabricated seawater tank used to create water fall height for Reverse Osmosis Freshwater making units.
• Each PHRT-caisson prefabricated at coastal diked-in areas (Oosterschelde ‘Neeltje Jans’).
• PHRT-caissons are placed 500 meters from each other. Dike width 1 – 1,2 km.
• Surrounding camel shaped dikes up to 40/50 meters above ocean floor.
• In between the two outer dikes place for: a) TGV, b) railway building cranes, c) cargo trains, d) sunken caissons for ducted High Voltage distribution lines and switch yards and freshwater pipelines/ pumpstations, f) coastguard and defense stations/fortress/base purposes.

With RED or PURPLE basin water level height difference = 10m, pumped from RED to PURPLE or v.v.: