Engineers at the Canal and River Trust have used a drone to solve the problem of how they inspect one of the country’s fastest flowing weirs.
Every second around 18,000 gallons of water flows over the Cromwell Weir on the River Trent, meaning engineers couldn’t safely access it to look for damage to the weir or surface water irregularities which may indicate problems below.
Instead a drone mounted camera was flown over the weir at heights of 1m, 20m and 75m above the water surface. Previously inspections of the weir, built around 1960, have been carried out from the river bank using binoculars.
Source: Canal and River Trust
Canal and River Trust senior engineer Neil Besley said; “Cromwell Weir is one of the fastest flowing, most powerful weirs on our river network and so inspecting it certainly presents some challenges.
“By using a drone we’ll be able to get a much closer look than would be possible from the riverbank. This is an effective, economical and safe method of identifying problems early on.
“It’s a great example of how modern technology can help us care for the nation’s historic waterways.”