Lower Benefield, Northamptonshire This trickle may be unmapped, but when the water rises, it delivers enough force to damage a bridge

It has no name, but it has torn a bridge apart. “The brook” rises west of Lower Benefield, near Spring Wood. There, a dendritic network of tiny streams converges and flows to Sheepwalk Spinney, after which, for much of the year, the water disappears underground leaving the valley floor dry. Further downstream, around Brook Farm on the eastern side of Lower Benefield, it re-emerges as a wriggly stream that runs all year round. After winding south of Glapthorn, the brook unites with the broad, slow-flowing river Nene near Cotterstock.

Thunderstorms with torrential rain formed flowing sheets of brown water on the roads and saturated the valley this week. Then another storm, and the brook springs into vigorous life, water erupting overground and rising rapidly. Quickly, the stretch upstream of Lower Benefield and the A427 transforms from a trickle between stickleback-occupied pools (we get the three-spined and the scarcer nine-spined) into a tumultuous force; pouring across fields and impelling through spinneys.

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Source: Guardian Environment