Fifield Tce manholes

Client: 

Downer

Consultant: 

SCIRT

Contract value: 

$465,000

Duration: 

July 16 – October 16

Brief: 

Replacement of three earthquake-damaged old brick wastewater manholes with pre-cast units along a Terrace by the Heathcote River, Opawa.

Scope: 

  • Temporary works consisting of cofferdams 5.6m x 3.2m with m deep FSPIII sheet piles with multi-usage well point dewatering to allow excavation to 4.5m deep.
  • Gravity main pumping for the duration of the works.
  • Relocation of DN375 pressure main over the bridge without interfering traffic and over-pumped to allow driving of sheet piles safe
  • Earthworks involving bulk excavation XXm3 and subsequent filling of XXm3
  • Installation of 1200 x 1200 precast manholes
  • Replacement of upstream and downstream DN600 RCRRJ pipes.

Services: 

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