 Extensive flood protection works were carried out on both sides of the river in 2006-07 at a cost of nearly £9 million.of brick-clad steel-piling was put into place to protect the town, most noticeably at the Waits, where a plaza has also been created.A further on the other side of the river protects Hemingford Grey, reducing the yearly risk of flooding from 10% to 1%.