ocean side view of the concrete structure of the storm surge barrier

1953 as barrier blades bridge building built concrete construction control dam delta deltawerken disasters dutch eastern electricity energy engineering europe flood floodgate flooding flow flowing holland jans mooring neeltje netherlands north ocean oosterschelde piling post power prevent protection province river scheldt sea seagull side sky storm stormvloedkering stormy structure surge technology that tide turbine view water wind works zeeland