Lying as it does in the valleys of both the rivers Kennet and Dun, flooding in Charnham Street used to be a frequent event until the middle of the 20th century. Families got
used to "pumping-out" their premises and homes.
One well-recorded flood was on 16th May 1932, when Charnham Street was under several inches of water. Several of the pictures on this page show this particular flood - others
See also Charnham Street Floods, 1894.
It is said that flooding continued until the 1950s, but improved dredging of the rivers Kennet and Dun below Hungerford, and the extraction of water from the river
Kennet at Axford resulting in lowering of the water-table at Hungerford has greatly reduced the risk of flooding.
One minor episode was reported in the NWN on 1 November 1979: "Charnham Street in Hungerford was partially flooded on Thursday morning following several hours of heavy rain.
Pavements were awash with rainwater and motorists had to take great care as they went to work."
Hungerford is further protected from flooding by the continued preservation of its water meadows, especially Freeman's Marsh. The development of Charnham Park has reduced the area of protecting water-meadow on
the Kennet, although much remains up-stream. There has certainly been no flooding since at least the early 1970s, and none occurred in July 2007 when Thatcham was so severely affected.