The Zuiderzee Works -LRB- -RRB- are a human-made system of dams , land reclamation and water drainage works , and the largest hydraulic engineering project undertaken by the LOCATION@1 during the twentieth century .

The Zuiderzeewerken -LRB- ORGANIZATION@1 -RRB- are a system of dams , land reclamation and water drainage works , and the -RSB- project undertaken by the LOCATION@1 during the twentieth century .
