ProjectTasman Highway – Hobart Airport Interchange
LocationCambridge, TAS
ClientDepartment of State Growth
Key worksRoadways

The Hobart Airport Interchange project was required to replace the existing Hobart Airport roundabout with a solution that improved the existing traffic congestion and allowed for high projected growth for the Hobart Airport and the Sorell/Cambridge area.

After an initial design phase, the Department of State Growth elected to undertake the project as design and construct contract model to allow for innovative solutions from the industry. During the tender phase, Hazell Bros partnered with designer Cardno and proposed raising the Tasman Highway over the intersection, a design solution focused on the following key items:

The final design of the interchange was comprised of the following key items:

Upgrades to local roads to improve access safety to local businesses and the Hobart Airport

ProjectIntersection upgrade and safety widening Angela Road – Etna Creek Road
LocationAngela Road to Etna Creek Road, Rockhampton QLD
ClientDepartment of Transport and Main Roads
Key worksRoadways

The scope of works included widening and reconstruction of 6.1kms of road. Realignment of Greenlakes Road intersection and 640m of new road construction on Dawson Road for realignment of the intersection.

ProjectByron Bay Bypass
LocationByron Bay NSW
ClientByron Shire Council
Key worksRoadways

Hazell Bros completed the construction of the town centre bypass to the west of the rail corridor along the Butler Street road reserve in Byron Bay. The Bypass connects the southern and northern ends of the Byron Bay CBD for through-traffic with road corridor approximately 1km long, easing traffic con-gestion within the CBD allowing traffic to flow smoothly.

The scope of works were primarily constructed within the existing developed and undeveloped Butler Street road reserve and consisted of:

Demolition, clearing & grubbing, earthworks including dewatering & soft soil foundation stabilisation, drainage, road pavements and surfacing, kerbing, line marking, concrete medians & roundabout aprons, shared path, signage, fencing, guideposts & bollards, retaining walls, driveways.

ProjectFitzroy Bridge Upgrades
LocationBanana Creek, Callide Creek, Roundstone Creek, and Sandy Creek, QLD
ClientDepartment of Transport and Main Roads
Key worksBridges

The scope of works included the demolition of existing timber bridges and construction of 3 new bridge structures and associated roadworks, and the widening of a fourth bridge with approach works.

Banana Creek

Side track construction and replacement of the existing timber bridge at Banana Creek with a 2-span reinforced concrete bridge, with 1km of road widening and upgrades.

Callide Creek

Side track construction and widening of the Callide Creek Bridge structure from 6.7m to 9.2m (between kerbs) and associated approach works, including the reconstruction of the existing pavement with geometric corrections.

Roundstone Creek

Side track construction and replacement of existing timber bridge at Roundstone Creek with a 4-span reinforced concrete bridge structure, flood improvements at the eastern and western overflows adjacent the bridge site as well as an intersection upgrade to Glenmoral Roundstone Rd.

Sandy Creek

Replacement of the existing timber bridge at Sandy Creek with a 3-span reinforced concrete bridge, and associated approach works.

ProjectMount Lindesay Highway – Rosia Road to Stoney Camp Road
LocationPark Ridge South, QLD
ClientDepartment of Transport and Main Roads
Key worksRoadways

This project involved widening of a 1.4km section of the high-way from one lane in each direction to two lanes in each di-rection, including associated shoulders, on and off ramp and adjacent bus stop area. Project elements included:

Installation of 38 streetlights (combination of single and double outreach) traffic loops and CCTV cameras

Project Noosaville Landfill Cell Expansion and Cell 1.1 Capping
LocationDoonan, QLD
ClientNoosa Council
Key worksLandfill

Characteristics of the works undertaken included, but were not limited to:

Supply and Installation of landscaping, topsoiling, turfing, tree planting and establishment maintenance (13 weeks)

ProjectNorthern Rivers Rail Trail – Murwillumbah to Crabbes Creek Section
LocationMurwillumbah to Crabbes Creek, NSW
ClientTweed Shire Council
Key worksCommunity infrastructure

This project incorporated two tunnels (517m long and 50m long), 29 under bridges, multiple culverts and level crossings.

The works included:

Tree/shrub planting and general landscaping

ProjectRosebery Tailings Dam Upgrade
ClientMinerals and Metals Group (MMG)

In 2016/17 Hazell Bros was engaged by MMG to upgrade the Rosebery Tailings Dam. Some of the works included:

Awarded the Tasmanian Civil Contractors Federation Earth Award in 2018 - Category 5 Project value between $30M and $75M.

ProjectConglomerate Dam Upgrade

Built in 1971 of earth and rockfill construction, Conglomerate Dam has a storage capacity of 53.1ML. In 2017 Hazell Bros was engaged by TasWater to undertake an upgrade of the dam. Some of the works included:

2019 Cattle Hill Wind Farm (Goldwind)

This is the largest contract ever awarded to the business in its own right.

Works included 48 turbine footings, each averaging 450m3 of concrete; 26km of access roads; crushing and screening of road building material on site; steel fixing; management of 40km of electrical reticulation cabling; construction of substation, including control building; and operations and maintenance building.

2007 Studland Bay Wind Farm (Hydro Tasmania)

Works included construction of 24km access roads; establish and operate two mobile concrete batch plants to produce 15,000m3 of concrete; construction of 25 16.6x16.6m reinforced concrete footings for the towers, each containing 40T reinforcing steel and 450m3 concrete; construction of 25 45x45m hardstands; design and construction of control building; construction of switchyard footings; installation of 25km of underground cables; and civil works for 5km of transmission line, including temporary access roads and pole footings.

2012/13 Musselroe Wind Farm (Hydro Tasmania)

Works included construction of control building and associate switchyard footings; construction of 45km of internal road network and associated local road upgrades; construction of 56 octagonal reinforced concrete footings for the towers; onsite quarrying of road building materials; establishment and operation of two mobile concrete batch plants; and establishment of a fully-equipped 80-person construction camp in Gladstone.

LocationEast Devonport, TAS
Key worksPorts & harbours

The joint venture project will deliver an upgrade of the existing Berth 3E to make it suitable for operation, including berthing, mooring and stern-loading of a roll-on roll-off (ro-ro) ship up to a length of 212m, for both passengers and freight between Geelong, VIC and Devonport (new Spirit of Tasmania vessels).

The scope of the works under the contract includes:

The project has adopted the use of 8T rock bags as scour protection in the berth in lieu of large rock and associated additional dredging. This is the first time in Australia that these rock bags have been used in this application. The bags are also made from recycled materials and are filled with rock from a local Hazell Bros quarry.

The wharf piles are coated with a 3-layer polyethylene (3LPE) coating system to increase the durability of the piled structure and lower life cycle costs for the asset owner.

Works have been carried out with strict environmental monitoring to ensure compliance to relevant water quality, turbidity, noise and dust standards. Site reuse of material has been maximised where possible with dredge rock and concrete demolition waste being crushed on site and reused in the reclamation areas.

The project is due for completion in May 2024.