The new Dammam-Jubail single track line will be approximately 115 km long. It will link the railway network to the city of Jubail and Jubail Port. Jubail is an industrial city that generates a large quantity of cargo for Riyadh, Jeddah and the northern part of Saudi Arabia.

The rail connection to Jubail will provide a reliable and economical means of transport of the industrial produce of the city to other parts of the country.