TODMORDEN is one of 77 locations nationally in need of of surface water management plans, according to the Department for Environment, Food and Rural Affairs.
Currently, the Environment Agency is spending millions on a flood alleviation scheme by managing the risk of flooding from Walsden Water. That includes strengthening culverts which take water through the town centre.
Work already completed includes the building of new defences along the banks of the River Calder and using Centre Vale Park to store future flood water.
Calderdale Council is finalising a draft preliminary flood risk assessment for the district. Under regulations it has to submit the plan to the Environment Agency by June 22.
Although, no nationally significant flood risk areas have been identified within Calderdale the authority is required to produce a local flood risk management strategy.
Recommendations put forward include studying river and surface water infrastructure; risks posed by the sewer network; and compiling a database of events to help management.
Large “one off” rainfall events have caused surface water flooding in Todmorden and elsewhere in Calderdale.
The 1982 flood at Cornholme, Todmorden, caused extensive damage when main river culverts were unable to transmit increased flows of water.
The 1989 flood over Luddenden and Wainstalls caused severe damage to properties and the recovery took six months.
The 2000 flooding caused widespread damage nationally and Calderdale didn’t escape the effects.
Regular flooding has also affected the A646 in the Upper Calder Valley.