The Surtees Bridge is a road bridge carrying the A66(T) road east west across the river Tees near Thornaby-on-Tees in the borough of Stockton-on-Tees in the north east of England.The bridge is situated one kilometre upriver from Stockton town centre, just upriver of Tees Bridge – a rail bridge carrying the Tees Valley Line.Built at a cost of £14.3 millionthe bridge replaces an earlier Surtees Bridge that showed signs of distress resulting from excessive settlement.The Surtees Bridge and the A1 motorway bridge are the busiest over the river Tees with 55,000 vehicles per day.The river level at this point is held at 2.7 mOD by the Tees Barrage which makes the river here permanently navigable.