THE RENOVATION OF A VICTORIAN SWING BRIDGE. BRIDGE MANAGEMENT. INSPECTION, MAINTENANCE, ASSESSMENT AND REPAIR. PAPERS PRESENTED AT THE FIRST INTERNATIONAL CONFERENCE ON BRIDGE MANAGEMENT, UNIVERSITY OF SURREY, GUILDFORD, MARCH 28-30, 1990

Cross Keys Bridge is an iron and steel swing bridge carrying the A17 Newark to King's Lynn trunk road over the River Nene. Built in 1897 to carry a railway line and single lane road, it was converted to two lanes of highway in 1963 after the railway line was closed. In 1982 renovation of the old bridge for a limited future life was the most economic option for providing a route for the proposed Long Sutton and Sutton Bridge bypass over the River Nene. It also enabled the bridge, by then a class II listed structure, to be 'preserved' in working condition. Deterioration of some parts of the substructure and the mechanical wedging system was so advanced that an early contract was let to deal with these urgent works. The subsequent main renovation contract included: (1) replacing deck to improve loading capacity; (2) repairs and repainting of existing metal work; (3) increasing headroom for road users; (4) separating pedestrians from road traffic; (5) modernising the mechanical drives and control systems; and (6) fendering to reduce risk of shipping collision. The paper describes these works and the repairs which were devised after the full state of corrosion damage had been revealed. The repairs, including replacement of the bridge deck in stages, were undertaken without interruption to the navigation requirements to swing the bridge and with the exception of a few weekend closures, single way working for road traffic was maintained throughtout winter periods.(A) For the covering abstract of the conference see IRRD 830553.

  • Availability:
  • Corporate Authors:

    Elsevier Science Publishers

    Crown House, Linton Road
    Barking, Essex IG11 8JU,   England 
  • Authors:
    • SIMPSON, B
    • Blyth, M F
  • Publication Date: 1990

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00606677
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 1-85166-456-4
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1991 12:00AM