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Complex Repairs

Complex roading repairs demand significant planning, investigation and design work and exceed $200,000 per site to complete.

Wimbledon rd rp9500Complex roading repairs demand significant planning, investigation and design work and exceed $200,000 per site to complete. They demand longer construction time frames as work can involve major structural repairs, river protection, bridge armouring and landslipsSome complex sites will require resource consent and Council will seek community engagement to inform optimal design solution and construction programming. 

Council has identified 116 sites on the district's roading network requiring complex repairs as a result of Cyclone Gabrielle. Of the large number of complex repairs required, 34 have received funding to date and you can read details of those complex repairs currently programmed under Council's Road to Recovery below.

Complex work sites programmed for repair

Repairs to a landslip at the base of Renalls Bridge’s piles (below left) have involved placing Enkamat over 100 mm of topsoil before grass seeding on the true left abutment. This protection will prevent future erosion around the bridge’s abutments and reduce the possibility of bridge failure.

SP4 Renalls BridgeRenalls Bridge 


Cyclone Gabrielle causesignificant scour to the true right bank beneath Pōrangahau Stream Bridge and fallen trees (below left). The damage has been successfully repaired by contractors Tūpore Infrastructure, who have placed Enkamat over 100 mm of topsoil and then grass seeded on the bridge’s true right abutment, reinstated block work on the true left abutment and cleared trees upstream of the bridge (below right). 

SP2 Porangahau Stream BridgePorangahau Stream Bridge

UPDATE: 5 June 2024

Emmetts Civil Construction reached a major milestone last week in repairing the cyclone-damaged Douglas Cutting Bridge, completing all structural elements of the deck extension. 

The team is set to begin work on the bridge’s new road approach this week, which is planned to be completed by the end of June, and over the next month will attach the timber bridge handrails and continue riprap scour protection works beneath and around the bridge.

May3120240527 1745 DouglasCuttingBridge Camera01










UPDATE: 27 May 2024

The new bridge deck panels are now in place. These pre-cast concrete panels connect to each other and to the steel girders to create the solid bridge deck surface (extension) that the asphalt surfacing will be placed on. They have been designed to match the profile of the existing bridge, so from the road user's point of view it will all look and feel like one continuous bridge.

Following the new deck installation, the team will move onto completing the abutment headwall and wingwalls and backfill behind them; attach the timber bridge handrails; start work on the bridge approach road earthworks; and the remaining riprap scour protection works under the bridge



UPDATE: 10 May 2024

Riprap placement continues beneath the bridge. Over the next few weeks, the team will be installing the steel superstructure (beams) and pre-cast concrete bridge deck panels, which will be delivered to site in mid-May.

May 10bMay 10a











UPDATE: 19 April 2024

The new pre-cast pier cap has been transported to site and successfully installed. The FRP bearing pad is being constructed, which will be followed by abutment pier piling and riprap armouring in the coming weeks. The abutment is due to be delivered to site early May, and the bridge's steel superstructure and deck delivered from mid-May. Contactor TTM (Barons) and construction crew Emmetts are working hard to mitigate delays for anyone travelling through the area. 

April 19

UPDATE: 5 April 2024
The site remains inactive and secure while construction on the pre-cast pier cap continues off site. This is almost completed and is on schedule to be transported to site mid-April. 

April 5








UPDATE: 28 March 2024

The temporary pier has been installed and is taking the load of the bridge while the existing pier has been demolished and permanent piles are now being installed. There will be a pause in construction while the crew waits for the pier head to be pre-casted.

Douglas Cutting Bridge progressDouglas Cutting Bridge 28 March 







UPDATE: March 2024 

Great progress is being made on repairs to cyclone-damaged Douglas Cutting Bridge on Wakarara Road in Tikokino.

Contractor Emmetts reached a milestone in the bridge’s extension last week when they installed the temporary bridge bracing, in preparation for removing the existing piers in the coming days. Construction is on track to be completed by the end of June.

As one of the more severely impacted sites in our district where the whole abutment on the bridge’s left bank was taken out by Cyclone Gabrielle last February, it is great to see the significant planning, investigation and design work come together to restore this vital connection.

20240307 104132Douglas Cutting 2Douglas Cutting 1


January 2024

The impact of Cyclone Gabrielle caused the loss of abutment on the bridges left bank, leaving the existing bridge requiring an extension to close the gap between it and the bridge’s abutmentRock armouring works around the new true right abutment and existing true left abutment will protect the bridge from further erosion during flood events. 

Douglas Cutting



UPDATE: 29 May 2024

The bridge rebuild reached a milestone last week as contractor Concrete Structures completed all structural concrete elements of the new bridge. What a project this has been! 

In the coming month, crews will undertake civil works around and under the bridge, install guardrails, surface the new bridge deck and seal approaches up. The plan is to divert traffic onto the new bridge in mid-to-late June (weather dependent) so that the old ‘Walshes’ bridge can be removed.

IMG 4691IMG 4685








UPDATE: 9 May 2024

Concrete Structures is on the home straight to completing the impressive Gwavas Bridge rebuild in Tikokino. The new bridge is really taking shape now, the teams having installed its nine beams and this week laid the bridge’s new deck. Work will continue post-tensioning of steel cables to tie deck units together, and settlement slab concrete work.

3 MayMay 10

May 10 Gwavas deck







UPDATE: 22 April 2024

Abutment works on the bridge are now complete and the contractor is ready to install the bridge's beams. A second crane is onsite to lift the beams onto the abutments, which will incur a slight delay for traffic passing by the bridge rebuild site. Extra scour protection in the form of rock armouring will be installed under the southern abutment at no cost to Council. 

April 19 Copy


UPDATE: 5 April 2024

Reinforcing of the northern abutment is now complete and the formwork has been installed. The bridge rebuild is tracking well and on schedule for the concrete to be poured next week, where blinding (site concrete) will be poured on the southern abutment, preparing it for reinforcing steel fixing to commence. 

April 5 2April 5 1







UPDATE: 28 March 2024

Crews have begun reinforcing work for the northern abutment ahead of concrete pour scheduled for the beginning of April. 

March 28 2March 28 1

UPDATE: 22 March 2024

Construction of the bridge's abutment embankment continues in preparation of the precast panels getting installed.

March 22 2

UPDATE: February 2024

Great progress has been made on the Gwavas Bridge rebuild in Tikokino since construction began in January.

Contractor Concrete Structures has reached a significant milestone as crews begin the piling work for the new structure. The next phase of construction will see the bridge abutments being built, followed by the bridge’s new deck. 

The build is running to schedule and expected to be complete and open to traffic by the end of June 2024.

Gwavas Bridge piling 1.












December 2023

A complete washout of culvert and overlying material at Gwavas Bridge during Cyclone Gabrielle has meant a completely new bridge build is required. Construction of the new bridge will feature rock armouring around the bridge’s structure, protecting the new bridge against future erosion around its abutments and reducing the possibility of bridge failure.  

Contractor Concrete Structures will begin construction on the new bridge at the beginning of 2024, establishing and setting up the work site on 22 January. Work is programmed to take four months, with the new bridge completed and open to traffic by the end of June 2024.

Gwavas Bridge




UPDATE: March 2024

Repairs to scouring and slips beneath the bridge have been completed, as well as planting on the southern embankment. 











January 2024

Post-cyclone, Saleyards Bridge was left with scour and slips around its abutment and pilesApprox. 800 metres of planting of both flax and sedge will be required on both sides of the river surrounding piers 5 and 6 of the bridge to reduce the risk of erosion and assist with sediment control. SP5 Saleyards Bridge

As a result of Cyclone Gabrielle, flood debris (including logs and bails) was caught upstream of Flaxmill Bridge and scour resulted under the barrier on the downstream true right approach. Contractors have since repaired the damage to the site using Rip Rap rock revetment either side of the bridge (upstream and downstream) and Enkamat on the bridge’s berm. 

SP1 Flaxmill BridgeFlaxmill Bridge completed

Extreme weather during Cyclone Gabrielle left significant scouring at piers 1 and 3 of Wallingford Bridge (before image below). Contractors have successfully backfilled the scour with limestone rock Rip Rap as well as shaped and covered the bank with Enkamat, topsoil and grass seed (below right), completing repairs that aim to reduce the risk of erosion and assist with sediment control. 

SP3 Wallingford BridgeWallingford Bridge complete

Wakarara Bridge AbutmentContractors will supply and install approximately three metres of soil-anchored sheet pile wall together with a concrete wall at Wakarara Bridge’s abutment, backfilling the concrete wall with drainage metal to prevent further disrepair and reinstating the pavement and new guardrail. 

Elsthorpe Road RP 16.1

An over slip resulted in the surface of the road being pushed up by the landslide, subsequently reducing the traffic to one lane.

Fletchers CrossingThe effects of Cyclone Gabrielle caused the road and true right abutment at Fletchers Crossing to be washed out, resulting in a complete road closure until repairs can be made. The bridge will remain closed until the most resilient solution for the bridge can be determined.


Taurekaitai BridgeThe impacts of Cyclone Gabrielle resulted in severe erosion to Taurekaitai Bridge's true left upstream abutment, washing out the soils around the abutment and prompting a weight restriction for vehicles under 3.5 Tonne only.

To repair the bridge and strengthen it against future erosion and flood events, contractors will jack the bridge to level and reinstate the existing retaining walls as well as carrying out rock protection works and increase the height of the gabion wall next to the river. Contractors will also patch and tie in road surfacing to the existing abutment. 

The devastating effects of Cyclone Gabrielle resulted in undercutting of wingwall piles at Titoki Bridge's true left upstream abutment, compromising the structural integrity of the bridge and prompting a weight restriction of 3.5 Tonne to ensure the safety of all road users (see below left picture).

To repair the damage, contractors Concrete Structures have supplied and installed a concrete foundation and two temporary piers, connecting them to girders and installing a Reidbrace and Brace system to strengthen and protect the structure against future flood-related damage.

Titoki Bridge



Tourere Road RP3.85High flow waters from Cyclone Gabrielle damaged drainage structure on Tourere Road, with the overland water flow resulting in a minor downhill side under slip at the site.

To remedy the landslide, contractors will remove the flood material and supply and install a new intake structure comprising a 1.2 metre diameter culvert and new rock bag drop structure. To complete the works and protect the site against future erosion or possible slips, crews will carry out trenching at the site and remove then reinstate the gabion wall.

Wimbledon road RP1.316An under slip and over slip at this site caused significant damage to the road surface and left it uneven, reducing the roading corridor to one lane. A priority give way will remain in place until the most resilient solution for the road can be determined.


Tourere rd RP4.53Excess surface water from Cyclone Gabrielle caused an under slip on Tourere Road that reduced the roading corridor to one lane and damaged the seal for a portion of it, as well as removed the old retaining wall and timber lagging that was in place.

To remedy the significantly damaged site, contractors will cut back into the hill side to achieve a 30-metre retreat behind the existing road and construct approximately 200 metres of new road. To protect the site against future flood damage and erosion, a 0.9-metre diameter culvert will be supplied and installed, together with a headwall and debris arrestor.

Wimbledon rd rp9500Severe river scouring to the road occurred at this site, reducing the roading corridor to one lane and restricting the line of site around the corner. Traffic lights are currently in place until the most resilient solution for the road can be determined.


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