The North Bersted Relief Road opened to motorists on Wednesday, December 17.
This has been funded by the new 750-home Bersted Park development, constructed by Berkeley Homes and Charles Church Homes. The road, which connects the A259 Chichester Road with Rowan Way, is only the second new road to be completed in West Sussex in the last 13 years. Both of them have been built by Berkeley.
The road will dramatically reduce traffic congestion and delays in the North Bersted area. It is 1.8km long, cost £8m, and was funded by the developers.
The last kilometre of the road at Rowan Way is built on a two-metre high embankment, made up of 100,000 tonnes of earth. The road took just under two years to build.
West Sussex County Council Cabinet Member for Highways and Transport, Pieter Montyn, said: "It is great news to finally open this road to the public. We believe it is a building block towards sparking greater economic growth for the Bognor Regis area and will certainly cut congestion in the town.'