Calliope River Bridge and Anabranch Bridge: Engineering Analysis and Options Analysis


Department Transport & Main Roads

Project value




Gladstone-Mt Larcom Road, Qld



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.

What we delivered

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.

Key outcomes

Bellwethers services provided certainty which allowed the project to progress.

Blythe River Bridge Strengthening
North Brisbane Bikeway – Chalk Street to Price Street
Captain Cook Highway Smithfield Bypass
Tinaroo Falls Dam Raising
Nullinga Dam Detailed Business Case
Stony Creek & Lindenow Options
Warrego Highway / Mt Crosby Road Interchange Upgrade
Fairbairn Dam
Maturing the Infrastructure Pipeline Program (MIPP)
Land Street Bikeway Underpass Duplication
Morayfield Indoor Sports and Events Centre Expansion
Torbanlea – Pialba Road Floodway Replacements Business Case
Samford Road Options Analysis
Logan Motorway East Bound Drainage Improvements and Pavement Rehabilitation
Gold Coast Tourism Hub Project – Bundall Road Site
Greenbank Transport Corridor
South Burnett Regional Council Systems Review
Cannon Hill Shopping Centre Bus Facility – Bus Station Upgrade
Newell Highway Flood Immunity West Wyalong to Forbes
Mareeba-Dimbulah Road Widening and Roadside Safety Improvements
Calliope River Bridge and Anabranch Bridge: Engineering Analysis and Options Analysis
North Pine Hub Strategic Assessment
Gregory Highway 27B – LN1 Culverts Upgrade Planning (Business Case)
Barwon Heads Road, Black Rock Road and Staceys Road Roundabout
Juliet Street Pavement Rehabilitation
NDRRA Flood Betterment Works – Merivale Street, Depot & Pidgeon Roads
Mackay Bus Stop DDA Compliance Program
Milton Street & Archibald Street Intersection Upgrade
Warland Street Drainage
Creek & Pipe Protection Works, Sunnybank
South Street & Burton Street Intersection
Whittle Street Drainage Upgrade
Capella Landfill Rehabilitation and Transfer Station Relocation Work
Springsure Landfill Rehabilitation
Leans Creek Bridge & Richardsons Bridge Repairs
Charleville Industrial Estate Stage 2
Caping Road Bridge
Virginia Park N’ Ride Upgrade
Gin Gin Streetscape Stage Two
Black Mountain Road Safety Improvements
Australian Department of Defence – Enoggera Barracks
Arrow Energy Dalby – Laydown Yard Upgrade
Toowoomba Waste Transfer Facilities
Pacific Highway Upgrade – Woolgoolga to Ballina
Easing Sydney’s Congestion – Pinch Point Program
Burdekin Falls Dam Improvement and Raising
M6 Early Works Construction
Warragamba Dam Expert Witness Report
South Batemans Bay Link Road
Gunns Gully Road Interchange
M1 Princes Motorway Improvements
Circular Quay Precinct Renewal
Wynnum Road Corridor Upgrade
Brookside Shopping Centre – Embankment Stabilisation