Project Description/Scope of Work

TBS Farnsworth as the head contractor managed the capacity assessment, (carried out by OPUS) with consideration to increased axel loading. Strengthening to the 262m long 79m high trestle pier, truss viaduct was carried out which is located at the foot of Mt Ruapehu in a national park.

TROW Group Members Involvement

Lee Stewart was the Project Manager for TBS Farnsworth on this project and has since joined TROW Group. Part of the labour element provided to the project was through Pathways JV, which is a affiliate company of TROW Group.

Scope of work

Provide labour to assist in the above described works. TBS

Farnsworth managed the contract, which was under live rail conditions

in a challenging climate with snow for many months of the year.

Project challenges:

• Harsh weather conditions

• Live rail with freight in NIMT

• Remote location for materials

• Post tensioning and strengthening unable to be done under live load from train movements.

• Severe section loss in existing members requiring substantial replacement.

Positive changes made to Project:

• Construction driven design saving client substantial time and cost. With particular note to water proofing deck for encapsulation.


Location: 10min from National Park

Client: TBS Farnsworth

Contract Procurement: Agreed Rates

Management: Joe Vagana

Contract Type: Labour hire

Start/Finish Date

Start: June 2014

Finish: May 2015 (labour was employed direct)



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