SEIS3 Product Audit - Stream Crossing - Contract 0412 Hazell Bros

• Product Audit - Stream Crossing

• Document No.

• Observer

  Lincoln Hanslow

  Harold Percey

  Paul Ellery

  Peter Rand

• Conducted on

  Date

Chainage

• General information:

  Pipeline

  Rekuna Dam

  Middle Tea Tree Road Pump Station

  Shrub End Road Pump Station

  Table Hill Pump Station

• Line

  Select West Derwent River Derwent River Crossing Main Line 1 Main Line 2 Main Line 3 Main Line 4 White Kangaroo Road Spur Prossers Road Spur Orielton South Branch Brinktop Road West Spur Brinktop Road East Spur Shrub End Road Spur Table Hill Spur

  • West Derwent River
  • Derwent River Crossing
  • Main Line 1
  • Main Line 2
  • Main Line 3
  • Main Line 4
  • White Kangaroo Road Spur
  • Prossers Road Spur
  • Orielton South Branch
  • Brinktop Road West Spur
  • Brinktop Road East Spur
  • Shrub End Road Spur
  • Table Hill Spur

• Chainage to: Chainage from:

• Easting

• Northing

Safety

• Is there a JSEA on-site?

  Yes

  No

  N/A

• Is safety signage been displayed?

  Yes

  No

  N/A

• Are identified hazardous trees been managed?

  Yes

  No

  N/A

• Is minimum on-site safety standards been maintained e.g. (PPE, flashing beacon, reverse parking)

  Yes

  No

  N/A

Pre start

• Is there an approved Erosion and Sediment Plan (ERSED) for pipe crossing works?

  Yes

  No

  N/A

• Is there an approved Environmental Plan (CEP / EMP) for pipe crossing works?

  Yes

  No

  N/A

• Have all CEP or EMP boundaries and exclusion zones been flagged prior to crossing works commencing?

  Yes

  No

  N/A

• Have all ERSED control measures been installed prior to crossing works commencing?

  Yes

  No

  N/A

Weed Management

• Have all construction machinery been inspected to confirm they are weed free?

  Yes

  No

  N/A

Clearing at water courses

• Have disturbance limits within the riparian zone been minimised and managed as per an approved FPP or in accordance with the contractors CEP or EMP?

  Yes

  No

  N/A

• Have marked trees been felled parallel to the construction corridor and without falling into the watercourse?

  Yes

  No

  N/A

• Has the cleared vegetation been stockpiled as far as practicable away from the riparian watercourse zone or as specified within an FPP, CEP or EMP?

  Yes

  No

  N/A

• Are all identified sediment and erosion control measures effective around water course approaches and stream banks?

  Yes

  No

  N/A

Erosion & Sediment Control Measures

• Have all geo textile silt fences been secured in place with star pickets or other means and are being maintained to retain their effectiveness?

  Yes

  No

  N/A

• Has water runoff from the pipe crossing works area been diverted into either a settling pond, sediment trap or through vegetated ground to stop sediment entering the waterway?

  Yes

  No

  N/A

Watercourse Crossing Method Option 1 (above ground crossing)

• Has trenching ceased within 2m from the edge of the waterway?

  Yes

  No

  N/A

• Have all footings and structures been kept away from the channel confines and streambed?

  Yes

  No

  N/A

• Have all machinery been prevented from entering the waterway?

  Yes

  No

  N/A

Watercourse Crossing Method Option 2 (below ground crossing)

• Have sediment traps been installed downstream of the works?

  Yes

  No

  N/A

• Has stream flow been diverted around the excavation site and then re-inserted back into the main flow of the channel downstream?

  Yes

  No

  N/A

• Has the removed stream bed material been stockpiled in the same order as it was excavated, including river rock?

  Yes

  No

  N/A

• Has the stream bed material been returned back to its original profile?

  Yes

  No

  N/A

• Is is trench and hydrostatic water being discharged through sediment filters?

  Yes

  No

  N/A

Pipe laying in watercourse

• Has the pipe section designated for the crossing been fabricated prior to trenching completion to enable rapid installation?

  Yes

  No

  N/A

• Has the pipe been encased in concrete to correct design specification prior to backfilling?

  Yes

  No

  N/A

Reinstatement in watercourses

• Have appropriate bank stabilisation measures been implemented such as (slope stabilisation, revegetation, soil coverings, rip-rap and armouring, check dams, sediment traps and vegetation filters)?

  Yes

  No

  N/A

• Have in stream surface layer of either cobbles, course gravels or rock been replaced / introduced over the disturbed area and placed so it is not likely to act as a barrier to the passage of aquatic fauna?

  Yes

  No

  N/A

• If required, have sandbags, gabions or other means of scour protection been installed to confirm to the natural contours?

  Yes

  No

  N/A

Notes

Sketches

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  Media

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