vessel engaged in dredging at sunset time. hopper dredger working at sea. ship excavating material from a water environment

bay beach blue boat coast coastal coastline construction defense digging dredge dredger dredging dutch engaged engineering environment equipment excavating gravel harbor harbour hopper industry land machine marine maritime material mixture mud nautical navigation netherlands ocean orange pollution port replenishment sand sandwater sea ship shipping sky special suction sunset technology time trailing transport transportation tube vessel water waterway working