Greenbank Transport Corridor


Logan City Council

Project value



July 2020


Greenbank, Qld



Logan City Council (LCC) engaged Cardno to undertake options analysis on a variety of road upgrade options to Springfield Greenbank Arterial, Goodna Road, Middle Road, New Beith Road, Old Greenbank Road, Stoney Camp Road and Teviot Road. These roads and the interchanges between form the Greenbank Transport Corridor which is anticipated to experience significant growth over the next 40 years.

The options analysis that LCC have engaged Cardno to complete will ultimately determine a single major road alignment through this corridor to be developed over the coming years. To date Cardno have prepared a long list of upgrade options across three zones. LCC reduced these options to 2 per zone. Bellwether were engaged to provide optioneering cost estimates for the project.

Cardno required a cost estimate for each of the preliminary designs.

Bellwether were also required to provide a Basis of Estimate Report that that identifies the logic, data, methodology and calculations used to estimate the resources required to perform the above.

What we delivered

Category 2 cost estimates were prepared for each option in each zone (6 in total) in the LCC standard estimating tool using current relevant industry rates.

Key outcomes

Bellwether summarised all six estimates in a Basis of Estimate Report that identified the logic, data, methodology and calculations used to estimate the resources required to complete the works for each option.

Bellwethers Report was used as part of the options analysis to determine the ultimate road upgrade options.

Carmichael Coal Mine & Rail Network
DTMR Henri Roberts Drive (in 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
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
Arrow Energy Dalby – Laydown Yard
MSC Charleville Industrial Estate
BSC Leans Creek Bridge & Richardsons Bridge Repairs
CHRC Springsure Landfill Rehabilitation
CHRC Capella Landfill Rehab & Transfer Station
MRC Whittle Street Drainage Upgrade
TRC South Street & Burton Street Intersection
Seqwater creek & pipe protection works
MRC Warland Street Drainage
MRC Mackay Bus Stop DDA Compliance Program
MRC Juliet Street Pavement Rehabilitation
NDRRA Flood Betterment Works
Retail First Brookside Shopping Centre Embankment Stabilisation & Car park extension
NSC Black Mountain Road Safety Improvements
TRC Toowoomba Waste Transfer Facilities (*3)
Australian Department of Defence – Kokoda Barracks
Australian Department of Defence – Enoggera Barracks
MRC Caping Road Bridge
DTMR Virginia Park ‘n’ Ride Upgrade
BRC Bruce HWY Upgrade & Streetscape, Gin Gin
MRC Milton Street & Archibald Street Intersection Upgrade
WDRC Warrego Highway Upgrade and Streetscape, Miles QLD
MBRC Aurthur Drewett Drive
WDRC Bundi Creek Bridge (in progress)
NSC Noosa Parade Upgrade