Photo: Clarence River, Grafton
The web frustrates me some times. I am used to getting information from the web, but often there are gaps.
The Clarence River is one such gap. This is a big river, yet I cannot find a proper description. So I thought that I should record a few basic facts.
The facts that follow are taken from various sources. I have not attempted to link all sources.
- The largest coastal river catchment in NSW at 22,700 square kilometres in the New England ranges extending into southern Queensland.
- Largest of all NSW coastal rivers - flows up to 16,800 m3/s have been recorded at Grafton while the average annual discharge is approximately 3.7 x 106 ML/yr.
- Length around 394k (394 miles).
- Road distance from river mouth to Grafton 62k.
- Main tributaries Mann River, Nymboida River, and Orara River.
- More than 100 islands form part of the Clarence River system.
- The limit of tidal influence is Smiths Falls near Copmanhurst, about 105 km from the ocean.