A NSW Government website

Surface water science

River Assessment Tools

We use river assessment tools to visualise data and determine the environmental value, condition and type of rivers.

The Belligen River on a sunny day, NSW.

About the tools

We use river assessment tools to visualise data and determine the environmental value, condition and type of rivers. We also use the tools to measure and evaluate how water-dependent environments respond to different patterns of surface water flow. These tools help us to understand and track changes to the river's physical form, its fringing vegetation, and the wildlife that depend on river ecosystems.

River assessment tools help us to evaluate water management strategies that aim to protect and maintain the environment. We use this information to inform water sharing plans and other legislation under the Water Management Act 2000 (NSW).

Tools we use to monitor changes

NSW River Condition Index

A consistent riverine condition assessment method.

River Condition Index Impact Assessment Tool

Predicting the impact of aquifer interference activities on river health.

River styles in NSW

A consistent method to characterise the types of rivers.

Environmental value of NSW rivers: HEVAE

Identifying surface and groundwater systems with high conservation values.

Environmental Outcomes Monitoring and Research Program

Read more about our monitoring projects.

Risk Assessments

A framework for prioritising management needs.