Brief details are given of the construction of the M62 between Manchester and Liverpool and the problems associated with the geology of the area, particularly construction over deep saturated peat in an area which suffers from mining subsidence. The bridge construction (48 bridges on this stretch of the motorway) has been designed to allow for up to 0.45m of harizontal movement at the abutments, and because subsidence from mining advances in a wave, each bridge span is flexibly joined to the next with dowel bars. A major problem in the area of peat was the stabilization of the sides of the motorway which was accomplished by placing slag bunds. A portion of the motorway has been built over a disused runway, which was first covered with a 1.5m thick blanket of coal tip waste to cushion the effect of subsidence in the large runway slabs. The slabs were broken up by trenches at 15m intervals to further reduce the risk of the slabs punching through the motorway surface as a result of subsidence, and also to drain the runway surface. /TRRL/


  • English

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 26-28
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00083432
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 29 1975 12:00AM