Civil Projects

Stonefield Pump Station

Mathews Butt Block, whangarei

project value: 30,0000

contract (weeks): 10 weeks

Actual (weeks): 9 weeks

G K Civil undertakes a serious project in beautiful remote Ngunguru coast, Whangarei. The work involves earthwork, sediment control, 1 to 4 meter high timer and steel pole retaining walls. The work area is in sensitive environment area conjunct with Maori land during winter season. It is a challenge to drill 4 meter deep holes in weathered rock in confined working space. G K Civil Ltd successfully completed the project to the satisfaction of the local authorities, Maori, and the developer – Neverland development Ltd.
It was a big challenge for G K Civil Ltd to construct the retaining wall during the winter time to meet the environmental protection requirements.

Mathews Butt Block H&S policy download

Coronation Bridge Repairs

To save the landmark and the significant heritage value to the Henderson, Waitakere City, G K Civil Ltd involved hard access earthworks, demolition, sheet piling & timber retaining wall, repair existing abutments, concrete, stone masonry wall, drainage, new hand rails and pavement works and repairs to Coronation Bridge.

During repairing, there is a signifcant issuer to retain the structure and perpetuity of the bridge in accordance with Transit and NZSEE guidelines.
This project involved massive traffic control and environment protection works.

Waitahia River Bridge, Puketoro, East Coast

project value: 720K

contract (weeks): 30

Actual (weeks): 24

A 36 metre single span Box Truss Bridge constructed to HNHO Class1 in the East Coast back country on the Waitahia River. To enable this project to be completed a roading network of some 14 kms, had to be developed to facilitate the deployment of the materials and labour. The structural concrete was batched onsite using aggregate won from the river in a portable 2cm batching plant. The superstructure of the bridge was transported from Auckland in 3 metre modules and assembled onsite in 18 meter sections.
The river was diverted to allow for a temporary pier midspan to support both of the prefabricated sections. Once attached to the abutments and spliced at midspan the temporary pier was dismantled, the bridge was braced and the deck and rails were installed. The above picture depicts the river in flood and conditions not unlike these were prevalent during the construction phase. All of the scour protection measures were gabion baskets with gabion rock won from the river. The South abutment was constructed on deep piers embedded in a mass concrete footing some six meters below water level. The North abutment was constructed on an existing rock escarpment by drilling 25mm starters up to 3 meters deep and constructing the abutment on a pre-prepared rock corbel. The above bridge was a design and build project.

Mata River Suspension Bridge, Puketoro, East Coast

project value: 274K

contract (weeks): 24

Actual (weeks): 16

An 80 metre suspension bridge built over the unpredictable Mata River.  At the time of construction this was the longest privately owned suspension bridge in New Zealand. The bridge was suspended of four twenty metre concrete towers placed in deep foundations and transported to the site by helicopter. The isolation of this site necessitated the construction of 4 kms of new road to deploy the material and labour. The installation of the suspension cables and hanger rods required a great deal of design improvisation given the inaccessibility for a crane. This project was unique given the site location and the innovative design of the tower foundations and the anchoring of the cables. The above bridge was a design and build project.

Maungawhairiki Bridge, Ruatoria, East Coast

project value: 400K

contract (weeks): 16

Actual (weeks): 8

A 5 span steel Stelltech Beam Bridge spanning the Mangawhairiki River. Before starting construction on the new bridge an existing Bailey bridge spanning seventy meters had to be removed and made ready for transport to Napier. After removal of the Bailey the existing pier caps were increased in height to accommodate new diaphragms prior to erection of the Stelltech beams. These beams were fabricated in Auckland and transported to the site. After remedial work to the existing abutments the beams were installed and a new deck, handrails and kerb were installed.  New bridge approaches completed the project. During construction traffic was diverted through the existing riverbed via a fully maintained ford.

Maungapohatu Bridges& Culverts

project value: 350K

contract (weeks): 24

Actual (weeks): 10

Puketoro Station Construction and Access Roads

project value: 300K

contract (weeks): 16

Actual (weeks): 9

Prior to the construction of the Waitihia and Mata River Bridges a network of roads totally 18 kms had to be constructed. The roading contract started from the existing airfield and was initially cut through 600 meters of existing forest which had been planted to stabilize a major slip face. Once through the forest block we had to construct a 1:8 grade road from an elevation of 1500 meters above river level. The design criteria was to accommodate truck and trailer stock units to carry stock from the marshalling yards situated down on the river plains to Ihungia Road an elevation of some 1600 meters. The material generally was breccia and required a significant amount of lateral culverts and larger concrete culverts where crossing gully’s. In addition turning circles had to be constructed for changes in grade. Extensive slip mitigation was required throughout the length of the new roading and ongoing maintenance during construction. Slope drainage was required in extremely wet areas of cut. At times the conditions were almost unworkable and even during snow storms we continued progress. The above project was a design and build project.

Demolition Projects

Demolition of 6 retail premises in busy CBD precinct including Level 2 Traffic Management.

project value: 350K

contract (weeks):

Actual (weeks):

Light commercial & Residential projects

Various residential and light commercial work, including timber pole retaining walls (up to 3 m high), concrete block retaining wall, concrete driveway & path, siteworks, timber fences, decking and stairs for numerous clients.

Photo Album of GK Civil