Doug Hood Mining

Sumner Road project completed and road opened

March 29, 2019

The road connecting Sumner and Lyttleton officially opened today since being closed due to earthquake damage in 2011. The following post provides a view of the completed project and our sections of work including a photo gallery of work progression.

Access to catchbench off Sumner Road

Rangi Hicks, DHML Project Manager for the Sumner Road contract

Doug Hood Mining Ltd (DHML) concluded their component of the Sumner Road project (2016 to 2018) with completion of the rock catchbench above the Sumner Road, road realignment at Windy Point, several bund platforms, and reshaping of the excavated rock stockpile in the Gollans Bay Quarry.

DHML was part of the successful team selected by Christchurch City Council to reopen the Sumner to Lyttleton road near Christchurch. This important link connecting Christchurch City and Lyttleton Port was badly affected by the 2010 and 2011 earthquakes and has remained closed to-date.

The team including DHML, McConnell Dowell, Beca, and Geovert, along with DHML contractors Orica and Inline Drilling, was required to design and complete geohazard risk mitigation works to facilitate opening the road.

Excavation in progress

Final cut

Work completed by DHML includes:

1. Site works for the establishment of the site offices at Evans Pass.

2. Construction of a sediment pond and rock-roll bund in the Gollans Bay Quarry adjacent Evans Pass.

3. Sheeting, bunding and installing sediment check dams and tanks along the Sumner Road before use as a haulroad between the catchbench and the Evans Pass tiphead.

4. Excavation of the platform for the F & G bunds at the terminus of the two valleys west of the catchbench.

5. Cutting into Windy Point corner adjacent the port.

6. Excavating the 400m long by 15m wide catchbench, with blast hole drilling by Inline Drilling and blast design, detonation, presplit and bulk explosives and shotfirer supplied by Orica NZ.

7. Hauling excavated material up to the tiphead at Evans Pass above Gollans Bay Quarry.

8. Dumping hauled material on the tiphead then dozer and loader push into the Gollans Bay Quarry stockpile.

9. Reshaping the stockpiled material that was excavated from the catchbench above Sumner Road and tipped into the Gollans Bay Quarry via the tiphead at Evans Pass. This work was engineered to increase the stability of the final landform in the floor of the quarry.

To discuss your civil and mining requirements contact Kevin Davies on 0274 325 869

To discuss your plant hire requirements contact Gavin Begg on 0274 354 190

Photo gallery from start to finish:

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