Wyke Beck is a stream that runs from Roundhay Park to the River Aire in east Leeds, West Yorkshire, England.

A proposal to site a railway depot in the Temple Green/Knostrop area, has been identified as potentially damaging to a colony of white-clawed crayfish.

[5] The proposals to build the depot for HS2 trains at Knostrop (part of the Gateway 45 project) would see the beck diverted again with work expected to take six months.

[11][12] The flooding is a combination of several factors; usually intense rainfall is the cause, but secondary effects are the amount of litter dumped into the stream and the developments built near to, or over, the beck.

[13] In August 2008, the level of the beck rose by 3-foot-3-inch (1 m) in 15 minutes, requiring the fire brigade to be called in to pump water away from the A64 road.

[16] The beck flows either through, or alongside, five Local Nature Reserves; Wykebeck Woods and Asket Hill, Arthur’s Rein, Killingbeck Fields, Primrose Valley, and Halton Moor.

[25] Diesel spills have been reported on the beck; one was in October 1991, with another in April 2018 that also polluted a 6 miles (9.7 km) stretch of the River Aire.

[31] The habitat for all of these is under threat from the proposed development of the rolling stock depot (RSD) at Gateway 45 for the HS2 line into Leeds.