Aftonbladet – 6 maj 1850, sida 3

) Experience of the value of wrought iron in roofs, and for other building purposes, has induced R. Stephenson to propose that material for constructing the bridge to carry the Chester and Holyhead Railway across the Menai Straits. His design consists of a close wrought iron tunnel or tube, 44 feet wide, 30 feet deep, and 4500 feet long, supported in the middle by a stone pier built upon a rock in the middle of the Straits, with two other piers at the low water mark on either side, leaving four openings, two of them 460 feet, and two of 230 feet each, and 400 feet above high water, so as to admit of masted vessels sailing under itn. Sir John Rennies address to the annual general meeting. January 20—1846.