Huge dam built to protect East Yorkshire townpublished at 08:18
Work on a £4.7m flood defence to protect homes in East Yorkshire gets under way today.
Pocklington has suffered flooding several times in recent years.
In 2007, 2012 and 2015 shops and homes were under 1ft (30cm) of water after the town's beck burst its banks.
The beck collects rainwater run off from an area upstream in the wolds, which then results in flood water flowing in to the town.
Work is due to start today on an earth-based 600 metre long dam structure to the north east of the town, which will create a water storage reservoir upstream.
When it's finished next year it will hold back enough water to fill 36 Olympic-sized swimming pools - that's about 90,000 cubic metres of water.