THE RESTORATION OF THRUSCROSS SPILLWAY BRIDGE

The testing and repair of a five span concrete road bridge, built in 1996, across the spillway crest of a reservoir dam in North Yorkshire is described. Inspection revealed extensive deterioration in the main longitudinal beams and severe corrosion apparent to the main reinforcing bars. There was also some lesser deterioration to the pier supports and abutment faces. Details are given of the testing regime using half-cell potential, concrete resistivity measurements and drilling. Load assessments of the bridge deck fell from 40 tonnes in 1993 to three tonnes in August 1994. Refurbishment of the bridge was carried out making the deck spans continuous so that it could carry the full assessment loading, would require little maintenance, it would not obstruct the spillway clearances and would be visually acceptable. None of the repair techniques were particularly innovative but the need to provide adequate disposal of water-borne contaminants is emphasised.

  • Availability:
  • Corporate Authors:

    PALLADIAN PUBLICATIONS LTD

    THE OLD FORGE
    ELSTEAD, SURREY  United Kingdom  GU8 6DD
  • Authors:
    • GADDY, M
    • PEARSON-KIRK, D
  • Publication Date: 1996

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 7-9
  • Serial:
    • CONSTRUCTION REPAIR
    • Volume: 10
    • Issue Number: 1
    • Publisher: PALLADIAN PUBLICATIONS LTD
    • ISSN: 0967-0726

Subject/Index Terms

Filing Info

  • Accession Number: 00723150
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Jul 26 1996 12:00AM