Lewsey Brook is a minor tributary of the River Lea. Lewsey Brook is a temporal water course, supplied by surface water from farmland and the nearby Luton suburbs of Lewsey, Lewsey Farm, and Lewsey Park, that enters the channel through a culvert. During periods of heavy rain, water floods areas of the nearby Lewsey Park.[1]
Lewsey Brook enters the River Lea via Knapps Brook (Houghton Brook) at Toddington Road in Leagrave village. The brook is most easily viewed Lewsey Park in Luton.[2]