Work begins on 145m-high power line towers on Teesside

Transporter bridge in Middlesbrough The towers will be twice the height of the transporter bridge which stands at about 70m (230 ft)

The building of two towers to carry overhead power lines across the River Tees in Middlesbrough has begun.

National Grid is building two 145m (475ft) high towers, expected to be the highest in the area, so power lines can be moved away from a chemical works.

The work is part of a £50m project to refurbish and replace parts of overhead lines on Teesside.

Project manager Mark Brennan said the steel towers have to be tall because of the width of the river.

He added: "We also need to make sure there is a safe clearance distance for the ships which will pass under the line."

The towers will be more than twice the height of the town's transporter bridge which stands at about 70m (230ft).

The project is expected to be completed by the end of the year and National Grid said there would be no interruption to electricity supplies during the work.

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