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Department Transport & Main Roads
2021
Gladstone-Mt Larcom Road, Qld
TRANSPORT
The two bridges are located on the Gladstone-Mt Larcom Road (Hanson Road) near Gladstone in Central Queensland. This road is a critical freight link connecting the Port of Gladstone to the network across the state and is a 25m B-double route. The Gladstone-Mt Larcom Road has an annual average daily traffic of 6,395 v/d with a 15% heavy vehicle component and is a principal cycleway network.
The bridges were designed and built by a non-Department Transport & Main Roads (DTMR) agency and DTMR has taken over custodianship of the structures. It was assumed that DTMR design codes and standards were not considered during design or construction and the design life of the structure is unknown.
Options Analysis Stage 1a & 1b
The designers proposed 4 options for both structures, Calliope River Bridge and Anabranch Bridge, Bellwether provided Category 2 Comparative cost estimate of 4 options at 85% Design. In addition, during Options Analysis Stage 1b – Category 2 Comparative cost estimates of 2 options at 85% Design for prestressed driven piles only.
Concept Design Stage 2
During Concept Design Bellwether produced Category 3 Comparative cost estimates and P90 cost estimates for both structures (preferred option only), Calliope River Bridge and Anabranch Bridge.
Bellwether also developed the Primavera P6 Construction Programs for both structures (preferred option only), Calliope River Bridge and Anabranch Bridge.
Bellwethers services provided certainty which allowed the project to progress.
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