The first bridge (actually two seperate bridges), over the Wansbeck and one of the busiest and most important. It is situated at North Seaton near to the river mouth and carries the A189 spine road linking Tyneside and the south with Blyth/Bedlington and Ashington/Newbiggin. A modern concrete structure with dual carriageway carrying upwards of 40,000 vehicles per day. The river banks are wooded on the north side and the there is a weir just upstream of the bridge with a concrete footwalk built on piers (no public access).
The eastern section (southbound) was opened first, in 1974, and later, in 1998, the northbound section was opened when the road was dualled. The bridges are seperated by a gap of no more than 25mm. The river mouth is sandy and beaches stretch north to Newbiggin and south to North Blyth. The Sandy Bay Caravan Holiday Park is on the north bank.