The Calliope Crossroads Arterial Interchange project involves construction of an arterial interchange which is located at the existing Calliope Crossroads intersection approximately 20km southwest of the City of Gladstone.
| Name | Calliope Crossroads Arterial Interchange |
|---|---|
| Services Provided | Contract Administration |
| Civil Support Role |
|
| Client | Transport and Main Roads |
| Project cost | $120M |
| Early Works cost | $10M |
| Main Contract cost | $60M |
| Contract Type | RCC |
| Construction Type | 50% Greenfield – 50% Brownfield |
| Construction Period | Jul 2012 – Feb 2014 |
This project involves construction of an arterial interchange which is located at the existing Calliope Crossroads intersection approximately 20km southwest of the City of Gladstone. Roadwork on the Bruce Highway (Benaraby to Rockhampton) extended 3.45km with a single carriageway Bruce Highway over the top of a duplicated Dawson Highway. Roadwork on the Dawson Highway (Gladstone to Biloela) extended over 1.2km and included two signalised intersections and off ramps. Works also included the construction of two span reinforced concrete bridges.
Civil Support project managed the documentation, tendering and delivery of the $10M early works packages for the relocation of PUP ahead of the main contract. All of the early works were delivered in time and a unique approach to the packaging and delivery of the works ensured costs were reduced below estimated amounts.
The project involved complex sequencing of traffic shifts to accommodate construction of the interchange under traffic and at the same time cater for the high peak volumes of highway traffic at the existing at-grade intersection. The Superintendent’s Representative worked collaboratively with the Contractor’s representatives to plan for and develop more than 120 Traffic Guidance Schemes throughout the project. No major accidents and/or traffic related complaints were recorded throughout the project.
Civil Support brought to the Contract Administration and Verification team significant TMR experience and provided valuable coaching to all project staff that was invaluable in ensuring the successful delivery of the project. Our team provided coaching to TMR staff that were assigned to the project and also provided invaluable guidance to the Contractors team who, by their own admission, were lacking in TMR project experience.
The project was delivered 3 months early via acceleration. This agreement was negotiated by the Superintendent and formed the basis for management of performance against time to ensure the target delivery dates were met. The Superintendent initiated weekly collaborative program reviews to review progress to date, identify slippages and implement mitigation strategies to avoid additional negative program impacts.
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