Erosion and sediment control
When it rains, large volumes of soil and sediment are washed into waterways from exposed soil on building, development and road and infrastructure construction sites.
This runoff pollutes the Coast’s waterways and stormwater systems, causing excessive growth of algae, smothering sea grasses and aquatic life and reducing both biodiversity and the value of our recreational fisheries by suffocating or driving away fish. Sediment runoff can also lead to road hazards and localised flooding.
Polluting waterways and stormwater systems also means increased costs to maintain infrastructure and canals. This form of pollution is manageable and can be minimised.
Council has a role to play in educating residents, businesses, builders and developers about the importance of minimising soil and sediment runoff as well as regulating the installation of adequate control measures.
Council seeks to ensure that those who cause land disturbance understand the issues of concern, plan their developments appropriately, and manage their sites in the best way possible to protect the environment and in particular the coast’s waterways. Legislation exists which provides for penalties and the ability for Council to instigate legal action against those who do not use the correct erosion and sediment control measures. This legislation allows for the issue of penalty infringement notices to be issued for certain minor breaches and the serving of notices and orders which may result in court proceedings for major offences causing environmental harm.
Erosion and sediment control for developers
Developers should refer to Development Design Specification D7 - Stormwater Quality(PDF, 552KB) for details of how to manage stormwater during the construction phase to minimise erosion and sediment generation.
Tweed Shire Council Stormwater page
Sediment and erosion control - information for the building and construction industry
Stormwater pollution control
FAQ: Do I need permission from Council to undertake erosion control works in tidal waters, including canals?
Answer: Yes. Property owners who wish to undertake erosion control works in tidal waters, including canals, need approval from Council. Property owners who wish to undertake erosion control works in freshwater reaches of the Tweed River or one of its tributaries will need consent from the NSW Office of Water.
Tidal wetlands and fish habitat
Large areas of the lower Tweed River estuary are comprised of tidal wetlands, including seagrass, mangroves and saltmarsh. These areas are extremely valuable fish habitats. Tidal wetlands are protected by NSW legislation.
The Importance of Riparian Vegetation to the health and stability of aquatic systems.
Riparian Vegetation(PDF, 85KB)
River management educational resources
Please select the required educational resource from the list supplied below:
Sea Grasses(PDF, 274KB)
Smelly Creeks and Algal Blooms(PDF, 490KB)
Aerial Mapping of Riparian Vine Weeds(PDF, 9MB)
Tweed River entrance sand bypassing project
The Tweed River Entrance Sand Bypassing Project is a sand transport system that collects sand from the southern side of the Tweed River entrance and pumps it under the river to outlets on the northern side. From there sand is transported by wave currents to nourish southern Gold Coast beaches. This process also aims to keep the entrance to the Tweed River clear of sand to improve navigation for boats.
Please visit tweedsandbypass.nsw.gov.au for more information.