Vermuyden’s Subsidiary Drainage Works – sasses and sluices.
1629 – Court of Sewers appointed In 1629, the Crown appointed a new Court of Sewers to oversee the “Level of Hatfield Chase,” a move intended to mark the completion of Cornelius Vermuyden’s great drainage project. This court was charged with maintaining the new network of drains, banks, and sluices that had reshaped the wetlands and opened large areas to...
