The Environment Agency reported on 11 August 2026 a rise in vandalism at its water control structures that summer, as drought was declared in Lincolnshire and Northamptonshire. It said damage to sluices, locks and other infrastructure was making already low water levels harder to manage and creating safety hazards.

Ashton Lock near Oundle was among the worst-hit sites, according to the agency. It said a winding wheel was damaged and removed for repair, a temporary fix was stolen, and the guillotine gate was tampered with, draining water needed for wildlife and navigation. In another incident there, a life buoy and rope were taken and used to tie open the lock doors before the gate was wound up; the agency said this had happened repeatedly and was reported to police. It also cited break-in attempts at control panels and people climbing on gates or jumping into locks.

Ben Thornely, an Environment Agency area manager, said the vandalism put lives in danger and had serious implications for wildlife and navigation during drought. The agency said it was placing volunteers at Great Ouse sites, using CCTV at some locations and carrying out additional safety inspections.