The New South Wales Roads and Traffic Authority (RTA) has been commissioned by the Sydney Catchment Authority (SCA) to undertake road works along the Avon Dam Road from the SCA boundary gate to the dam picnic area, a distance of approximately 5 kilometres. The road works would include the provision of a guardrail, minor widening of the existing pavement and associated works. The purpose of the Review of Environmental Factors is to describe the proposal, to document the likely impacts of the Proposal on the environment and to detail protective measures to be implemented.