Client: City of London, Ontario.
Value: CA$9,521,970

Construct a 4 No. concrete caissons for the Burbrook Trunk Sewer Project. City of London, Ontario, Canada.
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In September 2015, Ward and Burke Microtunnelling were awarded a contract to construct a 4 No. concrete caissons and 225m of 3000mm OD microtunnel for the Burbrook Trunk.

London_2-1300x700

  • Tunnel No.1 was 175m in length crossing underneath 22 No. live rail lines.
  • Tunnel 2 was 50m in length crossing under 2 No. live rail lines. Both crossings were completed with 7m+/- cover, (from ground level to crown of pipe) with negligible settlement to the rail lines, the alert level for settlement was 5mm, which was not reached during or after tunnelling was
    completed.
  • Both tunnels will then be tie-in to the existing storm pipe lines and permanent Manholes constructed in-Situ.