TORRIDGE BRIDGE: DESIGN

The River Torridge Bridge carries the A39 Bideford bypass over the Torridge Estuary in North Devon. The bridge is a high eight-span continuous structure made of variable-depth prestressed concrete, and built by the glued segmental balanced cantilever method. The structure, which carries a 7.3 m wide single carriageway, is 650 m long with 90 m river spans. A headroom of 24 m above mean high-water springs is provided over a 60 m wide commercial shipping channel. The river foundations are formed of caissons sunk 16 m to the sandstone and mudstone bedrock. Other foundations consist of 2.1 m diameter bored piles and spread footings. This paper describes how the structural and aesthetic design philosophy developed, and outlines the basic thinking and procedures followed for the more unusual aspects of the design. See also IRRD abstracts Nos 829918-829919.

Language

  • English

Media Info

  • Pagination: p. 191-210
  • Serial:
    • Volume: 88

Subject/Index Terms

Filing Info

  • Accession Number: 00606342
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS, ATRI
  • Created Date: Mar 31 1991 12:00AM