Work starts near Outwood reservoir on £14m water main
Work is due to start on laying a £14m water main across part of Surrey.
Sutton and East Surrey Water said the 10.5 mile (17km) pipeline, which will go under two railway lines and three A roads, would boost resilience across its supply area.
Mainlaying is due to begin near the Outwood reservoir from Monday, project manager Kevin Shilling said.
Most of the work will take place in open country but some road closures would be required, he added.
Consecutive closures will affect Scott's Hill from Monday, Miller's Lane in Mid-April, and Brickfield Road from early May.
A separate closure is planned for Green Lane from 2 April.