Roman bridge footings below Birdoswald mark where Hadrian's Wall, and later a road, crossed the River Irthing
Open accessfree to visit at any reasonable time
Substantial ruinsruined, but plenty survives above ground
The wide stone footings at the western end of this stretch mark where a bridge once took Hadrian’s Wall across the River Irthing, before builders broadened it to take a road over the water too. East from there the Wall stands for the best part of a kilometre, reaching close to 2.8 metres high in one stretch, past two small lookout posts built into the Wall, numbered 48a and 48b. Turret 48a survives better than almost any other along the Wall; near 48b, a barn wall incorporates a stone naming the centurion Gellius Philippus. Harrow’s Scar Milecastle, the walled gateway fort, is under a kilometre west, right along the Hadrian’s Wall Path, which runs the length of the site and costs nothing to walk.
