Awarded the contract in early 2010, Group One undertook the upgrade of Mulligans Flat Road between Jessie Street at Forde through to north of Henry Williams Street, Bonner.

Servicing the newly constructed suburbs of northern Canberra, the construction of this 1.6km stretch of road involved 90,000 m3 of cut to fill earthworks, building up the road embankment whilst excavating the major floodway which runs parallel to the road.

Also forming part of these works was the construction of two separate concrete plank bridges & associated floodway infrastructure, two major roundabouts at Mabo Boulevard and Henry Williams Street and the installation of traffic signals at the Mulligans Flat Road / Horse Park Drive intersection. Group One also constructed major stormwater infrastructure, floodway drop structures, pedestrian footbridges, streetlighting & landscaping.

This $11 million project was completed in June 2011.