Cotter Road is a key arterial road connecting the Molonglo Valley and Weston Creek eastbound to the rest of Canberra. The developments in the Molonglo Valley are expected to increase traffic on this important link in the road network. The Government has already completed a number of major upgrades on this road, including the signalisation of the Lady Denman Drive and McCulloch Street with Cotter Road.
The Cotter Road Stage 2 Duplication project upgrades the road from west of the Tuggeranong Parkway to east of the Yarralumla Creek. This upgrade completes the duplication of Cotter Road between Dudley Street, Yarralumla and John Gorton Drive. The duplication significantly increases traffic capacity and safety along this route.
The completed east and westbound carriageways provide two 3.5-metre lanes and a 2.5-metre on‑road cycle lane on each carriageway, and includes construction of a median to accommodate right turn lanes providing access to the Forest Park Riding School/horse paddocks and the Yarralumla Woolshed/Canberra Equestrian Park facilities.
A three metre wide off-road shared path has been constructed on the south side of Cotter Road, with connections to the abutting residential streets of Curtin. The off–road shared path links the existing path network along Yarralumla Creek to Streeton Drive.
Noise walls have been completed adjacent to the Curtin residential area and the ACT Equestrian Park to mitigate traffic noise from the duplicated carriageways.
The ACT Government committed $28.9 million during the 2016-17 ACT Budget.
View a time lapse of the Cotter Road duplication below.