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Bishop Dike is an artificial watercourse in North Yorkshire, England. The dike was built in the 15th century to carry stone from Huddleston Quarry to York to enable building works to be undertaken on York Minster. The dike is now used as a drainage channel.

History
During the 15th century, stone from Huddleston Quarry was used in the building of York Minster. To transport the stone, the Bishop Dike was constructed which went eastwards from the quarry site past Sherburn-in-Elmet, Biggin, and on to Cawood, where the stone could be transported upstream on the River Ouse into York. The dike still exists, and forms a drainage channel that flows into the River Ouse at Cawood, being part of the Ouse Catchment. After use as a means of transport, several corn mills were built along the dike in the Sherburn-in-Elmet area.

The dike extends for 17 km and drains an area of 25.6 km2. The Environment Agency consider the watercourse to have a poor ecological status.

Flooding
Flooding on the watercourse is alleviated by two overflow sections just east of Sherburn-in-Elmet which are known locally as The Bathtubs. These allow water to flow into two dikes running south through the Selby Dam catchment. A project was undertaken between 2020 and 2023 to reduce the agricultural run-off in the upper reaches of the dike, which was promoting weed growth in the lower section and causing flooding.