The Causeway will be closed today (Thursday March 14) and tomorrow for road repairs.
West Sussex County Council are resurfacing the road as one of three schemes introduced by Horsham District Council to renovate the town centre.
Improvement schemes are going on in the Carfax and are due for Blackhorse Way.
When the scheme was announced Helena Croft (Con, Roffey South), HDC cabinet member for Horsham town and special projects, said: “I am looking forward to seeing how these important improvements take shape to make these areas safer for the public to use.
“It is extremely important that we maintain our infrastructure to a high standard, so I am pleased to see these important works being carried out by the Highways Authority.
“Thank you for your patience whilst the works are in progress.”
The work in the Causeway is expected to last until 5pm on Friday March 15.