Dam Safety, Environmental, Europe

UK’s Toddbrook Reservoir spillway damaged

The spillway of the Toddbrook Reservoir in the UK was damaged late last week as a result of heavy rainfall in the area.

On Aug. 1, engineers with the Canal & River Trust were on-site assessing the scale of the damage to the spillway. They planned to draw down water in the reservoir to reduce the risk to nearby communities, and emergency services began evacuating local properties and closing roads.

Overnight, a Chinook helicopter was used to drop about 150 bags of aggregate into the damaged section of the spillway to reinforce the structure. The trust continued to draw down water in the reservoir.

As of today, Aug. 5, the trust reported having dropped the water in the reservoir by 5.7 m, down to about 46% of its capacity. A Chinook helicopter was used to drop an additional 1 tonne of bags of aggregate into the spillway.

The dam that impounds this reservoir was built in 1831, and it is located about 0.5 km southwest of the town of Whaley Bridge in Derbyshire, England. It has a capacity of 1,238 megaliters and provides water to the Peak Forest Canal.