If you heard a helicopter flying overhead then it was probably helping to install power to the Mount Keira Summit Park on Tuesday.
The helicopter installed a power pole at the park, which is in the Illawarra Escarpment State Conservation Area.
On Wednesday, the helicopter will install conductors between the poles.
The helicopter is being used so the environmental impacts are minimised during power pole and conductor installation.
On Wednesday traffic control will be in operation on Parrish Avenue Mount Pleasant to help with traffic movements.
Queen Elizabeth Drive will also need to be temporarily closed for safety reasons and access to Mount Keira Summit Park will be closed.
An overhead powerline will run from Parrish Avenue, Mount Pleasant to the park above the tree canopy of the Illawarra Escarpment State Conservation Area.
An underground powerline will also be installed.
Wollongong City Council will spend almost $1 million on the project.
Power was originally supplied to the Summit Park by a private powerline owned by BHP Billiton which failed several years ago.
Power supply to the Summit Park and the on-site communications tower is currently provided by Wollongong Council-owned diesel generators.
The tower is critical to Wollongong’s communication network and is relied upon for emergency communications.