Roadworks are due to begin on North Street next week, causing signficant congestion over the Horsham Railway Bridge starting this Monday June 11.
Temporary traffic lights will be installed at the roundabout outside Horsham Railway Station until Friday June 15 by Southern Water.
The utility company is putting in new water connections and apologised for any delays the works would cause.
West Sussex County Council is also currently reprofiling the front of the station, while Southern Rail continue to renovate the station interior.
For more information ring Southern Water on 0845 278 0845.