Correspondence

General Description. The new Tyne Bridge (now known as the Tyne Bridge) built by Messrs. Dorman, Long and Co., Ltd., of Middlesbrough, was opened by the King on Wednesday, October l0th, 1928. It is a road bridge connecting the town of Gateshead, in the county of Durham, to the ancient and busy city of Newcastle, in Northumberland, and spans the river Tyne by a single arch which carries the roadway. C.F. Mountney

TENSION members in a structure are of definite and known strength, if the grade of the steel be known. The strength in a test can be predicted with small error. Edward Godfrey

The assessment suggested in these tables is an endeavour to crystallise the general ideas on which the writer has found practical designers to have worked in the past, and he has attempted to expand them on the basis of the L.C.C. Code of Practice in the hope that they will give some stimulus to discussion on the part of those designers who have to sort out the rather elaborate but necessary specification of restraints given in the Code, and award them to suitable construction. G.F. Rodmell