The bridge was constructed as part of the Durham Junction Railway, which had been sanctioned by act of parliament in 1834; the act allowed for traffic tolls on a bridge over the Wear, including tolls for road and foot crossing.[1] A 170 ft (52 m) iron bridge suitable for passage by rail, foot and road vehicle was designed by John Green of Newcastle, but instead a stone arch bridge designed by James Walker was chosen.[2] The contract to build the bridge was given to John Gibb & Son. of Aberdeen.[3]
The Bridge under construction, woodcut from "The Local Historian's Table Book".[4]
The design was based upon the Alcántara BridgeinSpain. Construction began 17 March 1836 and was completed on 28 June 1838, the date of the coronation of Queen Victoria; as a result it was called 'Victoria Bridge'. The cost of construction was £40,338 5s. 10d.[5][note 1]
The bridge is 810 ft 9 in (247.12 m) in length and 23 ft 4 in (7.11 m) in width, with a height above water level of the top point of the arches of approximately 120 ft (37 m) It was constructed entirely of locally quarried Penshaw sandstone, excluding the quoins stones of the main arches, made of aberdeen granite.[6][7] The viaduct carried a double track railway, and had a walkway on either side for pedestrians.[8]
The main arches had spans of 100 ft (30 m); 160 ft (49 m); 144 ft (44 m); and 100 ft (30 m). At either end of the viaduct were sets of three smaller spans of 20 ft (6.1 m).[note 2] The main arches were semicircular with the exception of the main 160 ft span, which was a circular segment, spanning 160 ft with a rise of 72 ft. The three main piers and one of the arch abutments were founded on bedrock, the river pier required excavation to a depth of 24 ft (7.3 m) below the river bed to obtain that footing. One arch abutment was founded on 14 ft (4.3 m) long, 10 in (250 mm) diameter scotch fir piles, spaced at 3 ft (0.91 m). Above the first 5 ft (1.5 m) the piers contained voids to minimise mass.[10][7][note 3]
The bridge and line opened in August 1838.[5] As built it was one of the largest bridges in Europe, being exceeded in arch length by the River Dee bridge at Chester, and in height by the Alcántara bridge, but not by other structures in both dimensions.[11]
Scheduled passenger trains on the line and viaduct ceased in 1964 following the Beeching Axe. The bridge continued to carry freight, and was renovated in 1989/90. Diverted passenger trains also used it occasionally, especially while the East Coast Main Line was being electrified. After closure of the freight terminal at Follingsby in 1991 the line and bridge were mothballed.[12] The structure was grade II* listed in 1985.[13]
^InThe Theory, Practice, and Architecture of Bridges of Stone, Iron, Timber.. the contracted cost is given as £34,619 and the actual cost as £38,000.(Weale et al. 1843, pp. cxxii)
^Walker's original design had full arches at either end, and a total length of 135ft – the design was modified to replace both of the end arches with three smaller arches. Walker was unhappy with this modification,(Tomlinson 1915, p. 319) and the architect Charles Barry was also critical of the change.[9]
^InAccount of the Victoria Bridge, Erected Across the River Wear (Bremner 1843) an erroneous span width of 60ft is given for one of the main arches
