Constructability Archives - CJC

Central West Pumped Hydro

SEOSpecialist — Thu, 13 Nov 2025 00:05:08 +0000

Overview

The Central West Pumped Hydro ECI involved design, planning and pricing the construction of a 325MW electrical generation and storage facility, with the ability to generate 2,600MWh of energy and provide power to more than 153,000 homes.

The project included the design of access roads and water supply infrastructure, upper and lower reservoirs, penstock and powerhouse and transmission line connection.

Development of site water strategy and construction methodology, technical and market analysis of reservoir lining systems and providing input to the project Environmental Impact Statement.

CJC’s Role

CJC was involved in the ECI to optimise design, provide value engineering solutions; develop efficient work staging and sequencing, evaluate and value project risk, develop and refine the EPC program, and provide a total project cost. This included testing and refining the powerhouse design, the penstock design, and the zoned dam embankment composition of the upper reservoir, analysis of geotechnical information, dam embankment construction methodology incorporating necessary dam safety measures during construction.

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Graham Nuss

General Manager - CJC Regional

Jack Ashby

Principal Civil Engineer

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Sydney Metro Northwest

SEOSpecialist — Fri, 26 Sep 2025 00:27:27 +0000

Overview

A 4km elevated rail viaduct culminating in a 270m curved cable stay bridge, constructed from pre-cast concrete segments and placed with 2 overhead gantries. Works also included 2 large cuttings and station platforms.

The project is valued at $12.5 billion.

CJC’s Role

Provision of a multi-disciplinary team across all areas of construction. In particular, the bulk of the Cable Stay Bridge construction team.

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Anna Murray

Principal - Rail

Jonathan Davies

Managing Director

The post Sydney Metro Northwest appeared first on CJC.

Western Harbour Tunnel and Beaches Link

SEOSpecialist — Thu, 25 Sep 2025 06:54:31 +0000

Overview

The Western Harbour Tunnel will connect to WestConnex at the Rozelle Interchange, cross under Sydney Harbour between the Birchgrove and Waverton areas and connect with the Warringah Freeway at North Sydney. As part of the project, the Warringah Freeway Upgrade will make the road safer and more efficient.

This project is valued at $12.5 billion.

CJC’s Role

CJC was engaged by Roads and Maritime Services (now Transport for NSW) to undertake a constructability assessment for the development of the Reference Design for surface and structures works. This involved working closely with the RMS Project Team to develop the design, and input into cost estimates, programmes, risk assessments and the environmental impact statement.

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Craig Stoddart

Director - CJC Design & Constructability

Craig Murray

Tenders and Compliance Manager

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M7 Widening and M12 Interchange

SEOSpecialist — Mon, 08 Sep 2025 05:00:02 +0000

Overview

The project includes the widening of 23km of the M7 Motorway between Richmond Road and the M5 Motorway and the construction of a new interchange to connect to the proposed M12 Motorway. Works included the widening of over 40 bridge structures, several of which were similar in structure type to the Commonwealth Ave Bridges.

The works include management of construction under heavy traffic conditions and the management of a dedicated shared path.

CJC’s Role

CJC worked on a constructability role for the large scale infrastructure project during Strategic, Concept and Design and Construction (D&C) Procurement Phases. This included development of detailed construction and traffic staging, construction program, input into cost estimation and risk register, management of construction SME team and for D&C procurement phase and ongoing collaboration with the designer during the development of the tender reference design.

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Craig Stoddart

Director - CJC Design & Constructability

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Mascot Tunnels Mechanical and Electrical (M&E) Upgrade

Jaweria Saeed — Tue, 05 Nov 2024 06:25:00 +0000

Scope

RMS (now TfNSW) upgraded the existing electrical supply and utilities within the Mascot Tunnel complex along General Holmes Drive, underneath the Sydney Airport north-south runway and taxiways. The upgrade consists of works on both eastbound and westbound tunnels.

RMS engaged CJC to undertake a constructability assessment on three concept design options for the upgrade of electrical components and utilities within the tunnels under Sydney Airport runways at Mascot.

CJC role

The constructability assessment included developing detailed construction method statements, construction staging, a construction program and traffic management measures. Three design options were provided and assessed including:

Directly replacing/upgrading the existing electrical components and other utilities.
Constructing two new substations on the eastern and western side of the tunnel along with the upgrade of other utilities.
Constructing a single substation on the western side of the tunnel, along with the upgrade of other utilities.

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Combining Decades of Experience to Deliver Exceptional Project Management & Construction Solutions,  Ensuring Your Projects are Completed on Time, Within Budget and to the Highest Standards of Quality & Safety.

Michael Eager

Managing Director

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King Georges Road Stage 1

Jaweria Saeed — Tue, 15 Oct 2024 03:33:00 +0000

Scope

The proposed Project, King Georges Road Stage 1 (KGR Stage 1), will generally involve widening a 1.2 kilometre length of King Georges Road to provide three lanes in each direction, improving drainage and improving safety through construction of median and wire rope barrier to separate northbound and southbound traffic.

As part of the scope, CJC facilitated a constructability and health and safety in design (HSiD) workshop.

CJC Role

CJC Management was engaged to undertake a constructability assessment at detailed design stage. Key deliverables of the constructability assessment included development of issues and opportunities register and weekly submission, utilities impact assessment, construction staging, a likely construction sequence, construction methodology and a peer review of the TfNSW detailed construction staging.

The outcomes of the constructability assessment and workshop were presented in a constructability report.

GUIDING YOUR PROJECTS TO SUCCESS WITH DECADES OF EXPERIENCE

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Craig Stoddart

Principal | Project Manager

Rachael Oertel

Project Engineer

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M6 Extension Stage 1

Jaweria Saeed — Wed, 21 Aug 2024 06:25:00 +0000

Scope

The M6 Extension Stage 1 project will provide a motorway standard link between the New M5 at Arncliffe and the existing M1 Princes Motorway at Loftus. It will connect St George, Sutherland Shire and the Illawarra regions to the Sydney Motorway network.

The 3.8km section provides the critical link to the major gateways of Sydney Airport and Port Botany, reinforcing the national importance of the new motorway.

The project will also provide an Active Transport Corridor (ATC) for pedestrians and cyclists between Bestic Street and Scarborough Park North, through the existing reserved M6 corridor.

The project will maintain and enhance connectivity to local and regional destinations, including Bicentennial Park, C A Redmond Fields and areas of open space around Muddy Creek.

CJC role

CJC was engaged to provide constructability and utilities advice for the tender design before issue to the preferred tender teams. Further advice was provided to cost estimators and construction programmers.

Have a look at the interactive map on the Transport for NSW page.

GUIDING YOUR PROJECTS TO SUCCESS WITH DECADES OF EXPERIENCE

Our Experts, exceptional results

Craig Stoddart

Principal | Project Manager

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Inland Rail Grade Separating Road Interfaces

SEOSpecialist — Tue, 14 May 2024 04:56:00 +0000

Scope

The Australian Rail Track Corporation (ARTC) Inland Rail project is the upgrade of the freight rail network from Melbourne to Brisbane via Victoria, New South Wales, and Queensland.

As part of the Inland Rail Grade Separation Program, Transport for NSW is currently investigating the grade separation of 22 sites where existing highways interface with Inland Rail.

This project covers the concept design and environmental assessment for 6 of the proposed sites.

CJC Role

CJC Management led the constructability assessment team for the six Priority 1 proposed grade separated intersections over the future Inland Rail. We also provided advised during the concept design phase, assisting with preferred option selection and progression of concept design development. This included provision of detailed construction staging and programs, and facilitation of constructability and HSiD workshops.

GUIDING YOUR PROJECTS TO SUCCESS WITH DECADES OF EXPERIENCE

Our Experts, exceptional results

Craig Stoddart

Principal | Project Manager

Graham Nuss

Regional Director

The post Inland Rail Grade Separating Road Interfaces appeared first on CJC.

Great Western Highway

SEOSpecialist — Tue, 30 Apr 2024 01:23:00 +0000

Scope

Transport for New South Wales has engaged CJC Management to provide constructability advice to the Great Western Highway Upgrade East Project. The Project is made up of two sections, namely Katoomba to Medlow Bath and Medlow Bath to Blackheath.

It is understood that the current intention is for the K2M and M2B sections to be incorporated into a single Design and Construct project.

CJC Role

CJC Management was engaged to provide a constructability review, hydrology assessment and earthworks review for Transport for NSW including design management, stakeholder engagement and tendering.

GUIDING YOUR PROJECTS TO SUCCESS WITH DECADES OF EXPERIENCE

Our Experts, exceptional results

Craig Stoddart

Principal | Project Manager

Graham Nuss

Regional Director

Patrick Deed

Project Manager

The post Great Western Highway appeared first on CJC.

Osborne Naval Shipyard Project

Jaweria Saeed — Sat, 17 Oct 2020 06:25:00 +0000

Scope

Infrastructure development at the Osborne Naval Shipyard aims to modernise ship construction systems and processes in Australia to improve shipyard productivity and reduce the cost of Australian build programs.

CJC personnel undertook constructability assessments of the proposed car park, pedestrian footbridge and wharf facilities. Following engagement of a subcontractor for these works, CJC undertook a cost review comparison of the pedestrian footbridge.

CJC role

CJC was engaged by Australian Naval Infrastructure (ANI) during the detailed design and construction phases of the project. Initially our engagement was based on the team’s experience with steel structure heavy lifting. ANI then drew on our experience and expertise in quality and completion handover management.

During the construction phase, CJC personnel provided on-site construction and project management support to ANI. Responsibilities of our team included constructability reviews of the steel halls construction, heavy lift documentation reviews, tracking of program, review and approval of cost and cost estimation and reporting to the ANI Executive. Further expanding our responsibilities, ANI also engaged CJC to prepare temporary works designs.

During the final six months of construction, CJC personnel were engaged to facilitate the completion and handover process. Key responsibilities of this role included lot review; non-conformance review; defects and incomplete works tracking and reporting and management of the weekly completion meetings with the Managing Contractor, ANI representatives and the designers.

GUIDING YOUR PROJECTS TO SUCCESS WITH DECADES OF EXPERIENCE

Our Experts, exceptional results

RACHAEL OERTEL

PROJECT ENGINEERS

cRAIG sTODDART

pRINCIPAL | pROJECT mANAGER

Jonathan Davies

pROJECT mANAGER

Florian Dieterle

pRINCIPAL Engineer

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Easing Sydney’s Congestion M4 Smart Motorway Stage 3

Jaweria Saeed — Fri, 21 Aug 2020 06:25:00 +0000

Scope

The NSW Government is investing $470 million to build the M4 Smart Motorway project which includes a 35km upgrade along the M4 Motorway from Lapstone to Mays Hill. When complete, the project will provide a tailored technology solution to create a better travelling experience for motorists and a more consistent journey.

Smart Motorways use complementary technologies to monitor traffic conditions, manage congestion and respond to incidents in real-time. The M4 Smart Motorway will introduce a smarter way of travelling by using real-time information, communication and traffic management tools to provide motorists with a safer, smoother and more reliable journey.

The M4 Smart Motorway will be the first Smart Motorway in NSW and brings together intelligent traffic technologies to maximise the performance of the motorway.

CJC role

CJC was engaged by RMS (now TfNSW) in the role of Project Manager. Our role was responsible for managing the construction, commissioning and integration of the Intelligent Transport System (ITS) network for the Smart Motorway. Tasks included construction management of site activities, assessment of claims and variations and liaison with stakeholders on the testing and commissioning of the ITS network.

GUIDING YOUR PROJECTS TO SUCCESS WITH DECADES OF EXPERIENCE

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Colin Calder

Group Managing Director

The post Easing Sydney’s Congestion M4 Smart Motorway Stage 3 appeared first on CJC.

Sydney Gateway Program Peer Review

Jaweria Saeed — Fri, 21 Aug 2020 06:25:00 +0000

Scope

The Sydney Gateway Project comprises new and upgraded road and rail infrastructure located at the Sydney Airport and Port Botany precincts. This new infrastructure will improve freight capacity on the Port Botany rail line and link WestConnex to Sydney Airport and Port Botany; Australia’s two largest international gateways.

The review focuses primarily on construction of civil and bridge works and the interfaces with relevant stakeholders.

CJC role

CJC was engaged to undertake a peer review of the reference design and program as well as provide expert bridge construction advice.

RMS (now TfNSW) engaged CJC to undertake a peer review of the Sydney Gateway master program. The scope of the review included:

General review of the functionality and suitability of the program for the planning approval and procurement phase/s of the project.
General review of assumptions made for the program basis.
Detailed review of the construction methods, durations and sequence that form the level 3 activities and, in particular, the bridge structure components, with a focus on elements of higher program risk.

GUIDING YOUR PROJECTS TO SUCCESS WITH DECADES OF EXPERIENCE

Our Experts, exceptional results

Combining decades of experience to deliver exceptional project management & construction solutions,  ensuring your projects are completed on time, within budget and to the highest standards of quality & safety.