The A40 commences in the city centre of Derry on the west bank of the River Foyle and is connected with A2 at the Foyleside Roundabout.[2] The A2 continues at a higher elevation along John Street running parallel to the A40 along Foyle Road and travelling under the Craigavon Bridge, whilst the A2 spans the bridge over the Foyle on the higher level to the east bank to the Waterside and Derry~Londonderry railway station and around the Ulster coast line. The lower deck of the Craigavon Bridge has connections with the A5 along Victoria Road on the east bank to Strabane and Omagh. The two decks of the double deck Craigavon Bridge are both called Bridge Street, and the lower deck did have railway track linking the lines that served the city for goods trains. The Craigavon Bridge is an underbridge in terms of the A40, and an overbridge in terms of the A2.[3]
