Royal Tweed Bridge
Built 1925-8 by Mouchel and Partners
Has four unequal arches in reinforced concrete.
1928 'The Great North Road, on the stretch between Newcastle-on-Tyne and Edinburgh, passes through Berwick, where it crosses the River Tweed by means of an old masonry bridge, erected in the Seventeenth Century. Though still in a fairly good state of preservation, this bridge has long since proved too narrow for modern traffic conditions. Moreover, the approaches are very bad, the gradient being in places as much as 1 in 11, whilst the roadway is also very narrow, and winding, with several awkward corners, .... There was, however, an urgent need for improved facilities for road traffic over the Tweed, and various proposals were accordingly considered by the Ministry of Transport, the Northumberland County Council and the Corporation of Berwick, which were the road authorities concerned. It was decided to appoint as executive engineers Messrs. L. G. Mouchel and Partners, Limited, of 38, Victoria-street, S.W.1, who prepared a design for a Ferroconcrete bridge crossing the river from south-west to north-east ...... the bridge consists of a southern approach, 192 ft. long, which is followed by a series of four arches, having, respectively, spans of 167 ft,, 248 ft., 265 ft., and 361 ft. 6 in., whilst the northern approach viaduct is 144 ft. 6 in. long. The total length, inclusive of the approach viaducts, is 1,378 ft. The variation in the spans of the arches was adopted because the difference in the road levels on the two sides of the river made it necessary to give the roadway a gradient of 1 in 51, and this was conveniently and pleasingly provided for by adopting the constant level for the springings of 9 ft. 5 in.'[1]