Three Bridges railway station serves the village of Three Bridges, a district of the town of Crawley, in West Sussex, England. This station is where the Arun Valley Line and the Brighton Main Line diverge. Govia Thameslink Railway operates all services, under two brands. Firstly Thameslink operates the majority of services at the station, between Bedford and Brighton, Bedford and Three Bridges, Cambridge and Brighton, and Peterborough and Horsham. The second, the Southern-branded service also operates between here and London Victoria, with trains dividing here to serve either Portsmouth Harbour or Bognor Regis. On Sundays, a half-hourly Southern service operates between Brighton and London Victoria. It lies 29 miles 21 chains (47.1 km) down the line from London Bridge via Redhill. Three Bridges Depot is situated to the south of the station, the main depot for Thameslink Class 700s south of London. A Network Rail signalling centre is also sited nearby.