Selwyn river crossing
poles

Project Description

HGM were engaged to install 3 foundations and stand the new poles for a new Selwyn River crossing that Connetics were completing as part of the Orion NZ Ltd network. The contract consisted of 3 x 1,500mm diameter steel cased reinforced concrete foundations to 8/9 metres depth as well as the standing of the new 15 and 25 metre tall poles.

Project Solution

The large diameter permanent casings were driven using a 35t excavator with a hydraulic vibration attachment. These were then cleaned out to the desired depth with an auger followed by the installation of the steel reinforcing cages that HGM had supplied and tied in our yard. The casings were then trimmed on site to 200mm below ground level before being back filled around.

HGM also lifted and positioned the new poles in to place with a crane and bolted them in to place.

The site was left tidy with the Farmer’s fences reinstated and all project stakeholders were happy with the outcome.

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Location

Selwyn River, Highfield Rd, Dunsandel

Client

Connetics

Date

2023

Excavation equipment lifting a large steel casing during bored pile foundation construction for power infrastructure. The image shows civil contractors completing anchoring and piling, siteworks, utility infrastructure and ground stabilisation for a transmission line construction project.

Large steel casing being used for foundation construction on a rural power infrastructure site, with machinery and support vehicles nearby. This image shows civil contractors delivering anchoring and piling, bored piles, utility infrastructure and transmission line construction works.

Civil contractors using excavation machinery to position a steel casing during foundation construction for overhead infrastructure. This image highlights bored piles, anchoring and piling, power infrastructure, site preparation and project management on a rural construction site.

Excavation machinery lifting a large casing during foundation construction for power infrastructure and transmission line construction. The image highlights civil contractors, anchoring and piling, bored piles, site preparation and machinery transport on a rural utility infrastructure site.

Concrete pumping and foundation construction underway for power infrastructure, with civil contractors preparing a pole base in open rural land. This image highlights civil construction, concrete structure works, bored piles, utility infrastructure and project management.

Close-up of a reinforcing cage and circular foundation casing prepared for a pole foundation during civil construction works. The image shows foundation construction, concrete structure preparation, anchoring and piling, bored piles and project management for utility infrastructure.

Crane truck lifting a reinforcing cage from a flatbed trailer for foundation construction and concrete structure works. This image shows civil contractors managing machinery transport, sling operations, anchoring and piling, and project management for overhead infrastructure.

Excavator lifting a reinforcing cage into position for a bored pile foundation during power infrastructure construction. The image shows civil contractors managing foundation construction, anchoring and piling, concrete structure preparation and transmission line construction.

Crane lifting equipment to the top of a newly installed pole during power infrastructure and transmission line construction works. This image highlights civil construction, tower installation, overhead infrastructure, machinery transport and siteworks managed by civil contractors in New Zealand.

Crane and civil contractors installing a tall pole for power infrastructure and overhead infrastructure works in a rural setting. The image shows tower installation, transmission line construction, site construction and project management for utility infrastructure by civil contractors.

Completed pole installation for power infrastructure and transmission line construction in a rural landscape. The image shows overhead infrastructure, tower installation, civil construction and utility infrastructure delivered by civil contractors.

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