The A505 at Letchworth Gate will be closed next week for resurfacing works.
From Monday to Saturday, from 8pm to 5am, the A505 will be closed between the Baldock Road roundabout and the Letchworth Gate longabout.
A diversion route will be in place.
The works will include renewing the old road surface, cleaning the drains and replacing road markings.
A spokesperson for Herts Highways said: "We are completing resurfacing works on the A505 Letchworth Gate from November 11 for the increased comfort and safety of all road users, as the surface has become worn due to high traffic volume.
"Thank you for your patience during these works."
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