Northam Bridge

|type = Act |parliament = Parliament of the United Kingdom |long_title = An Act for building a bridge over the River Itchin at or near Northam within the liberties the Town of Southampton, and for the making of a road from the said Town to the said bridge, and from thence to communicate with the road leading from West End to Botley in the County of Southampton. |year = 1798 |citation = 38 Geo. 3. c. lxiv |territorial_extent = Great Britain |royal_assent = 21 June 1798 |commencement = 21 June 1798 |repeal_date = 3 August 1928 |amends = Northam Bridge, Hampshire (Improvement) Act 1796 |repealing_legislation= Southampton Corporation Act 1928 |replaces = |related_legislation = |status =…

The parapets of the first (wooden) bridge were 24 ft apart, as were those of its wrought-iron successor. The third bridge utilised the latest technology available at the time but the style of the bridge was of the pre-war era. The main deck structure has transverse diaphragms and narrowly spaced beams, which were pre-cast on site using deflected cables. The bridge is 148 metres long in total, and the supporting piers are up to 32 metres apart.