WETLAND RESTORATION ON PRIVATE LAND CASE STUDY 3: BEAUFORT DISTRICT

In this, the third of our early works case studies, we review another completed Nature Glenelg Trust wetland restoration project on a property near Beaufort in Central Victoria.

This project was developed to aid the restoration of a five hectare swamp that occurs on a natural watercourse flowing into Fiery Creek.  The site provides important water storage in the local drainage network whilst also supporting a high quality remnant red-gum forest that creates important habitat for local bird populations.

Earthworks undertaken by previous owners that included channel excavation and the construction of levee embankments have caused significant modification to the natural wetland area.  Since purchasing the property the new owners had noticed changes occurring to the natural inundation zone of the swamp which had historically backed up into the standing red-gums. Concerned that the wetland area was impacted by these past works, the landholders were keen to engage with us to help find a possible solution and develop a remedial response to this issue. After preliminary assessments were undertaken we were able to identify that the recently excavated channels constructed by the previous owners had created a new subsurface drainage pathway for the surface water. The channel excavations had been cut through a shallow depth impervious clay layer in the natural soil structure, subsequently providing an exit route for the surface water to drain through a deeper deposited gravel bed, artificially hastening the loss of water from the wetland system.

On ground works were designed to reduce the depth of the excavated drainage channel by relining the channel bed to effectively reinstate the original confining clay layer. Suitable clay material was sourced on site and a local earthworks contractor was engaged to fill and re-line the drainage channels. To ensure that the capping material was suitably impervious, bentonite clay fines were integrated into the material to increase the sealing effectiveness of the bed material.

This Case Study is the third in a series to illustrate wetland restoration in practice, delivered through Nature Glenelg Trust’s Wetland Restoration Program on Private Land and funded by the Australian Government.

  • Great news to end 2021 – the Mt Vandyke land purchase loan is repaid! December 15, 2021
    If like me, you have been watching the Mt Vandyke loan balance slowly dropping over recent months, then you probably thought things might take a while as we chipped away at it – I know I certainly did! But we have some wonderful news to share to end the year, with a single major matched ...
  • Large donation to Mt Vandyke honours a supporter’s parents December 15, 2021
    We have arrived at the end of the year on a high at NGT with the land purchase loan of our Mt Vandyke reserve now paid off! Our newest reserve, Mt Vandyke, has been the subject of a matched funding campaign beginning in May this year and over the past six months or so, many of ...
  • Cobrico Swamp and the importance of keeping peat wetlands wet December 15, 2021
    Some time ago I began corresponding with Kirsty Hawkes, a natural sciences writer and communicator, about peat wetlands. She had been given the task of gathering and telling stories on different community perspectives of the St. Patrick’s Day fires of March 2018 in south-west Victoria, which set alight the drained peat of Cobrico Swamp. The ...
  • Butterflies on the Brink: Bright-eyed Brown, Heteronympha cordace wilsoni December 15, 2021
    In October we brought you the first in a series entitled Butterflies on the Brink in which we’re showcasing the butterfly species most at risk of extinction in south-eastern mainland Australia. In this second installment, we are focussing on the Bright-eyed Brown (Heteronympha cordace wilsoni).This small butterfly (from the Nymphalidae or ‘Brown’ family) is ...
  • Paula Thomson, Senior Partnerships Advisor, joins the team December 15, 2021
    Back in 2019 a friend suggested I have a chat to a fellow named Mark Bachmann who founded an organisation called Nature Glenelg Trust. So I made a phone call and what ensued was a series of great conversations about NGT, and how philanthropy might progress its vision for the natural environment.A year later we walked ...
  • River Red Gums at Walker Swamp: Four years of data now shows a biennial flowering cycle December 15, 2021
    As part of a new program to involve volunteers in monitoring at Walker Swamp, and kick started through the Victorian Government’s 2021 Community Volunteer Action Grants, an intrepid group of eager but amateur ecologists (I am sure they won’t mind me calling us all that!) set out to learn the fine art of River Red ...
  • A hidden gem of the Victorian Volcanic Plains December 15, 2021
    The Volcanic Plains of Victoria are synonymous with some of Australia’s most productive agricultural landscapes and many of the plants and animals which once defined this area are now rare and threatened. Much of it lies behind farm gates and for the most part is not readily accessible. So it is always a joy to ...
  • Repairing the past at private land conservation sites in the upper South East December 15, 2021
    NGT has teamed up with three other landholders in the Binnum-Bangham district (the Jones, Baulderstone, and Brewer families), plus Burrandies Aboriginal Corporation, Limestone Coast Landscape Board, and other community members and organisations to repair the impacts of past land management actions across four reserves in the upper South East of South Australia (including NGT’s Eaglehawk ...
  • Bushcare and reveg: A look at what’s been keeping Tom busy in western Vic December 15, 2021
    Over the past few months, I’ve been enjoying spending time at a number of project sites around western Victoria. A lot of my time has been has been spent in the Cobboboonee National Park looking for and treating woody weeds with the NGT bushcare team (see previous update here). We’re continuing to find large numbers ...
  • Students get a taste for wetland assessments at Mt Burr Swamp December 15, 2021
    Late spring and early summer is a great time to get outdoors and our environmental education events have continued over the past few weeks, through our wetland science program with Grant High School. In classroom sessions, year 9 science students were introduced to the function and role of wetlands, why they’re important in the landscape, ...

Click here for the full list of project related blogs

No Comments

Sorry, the comment form is closed at this time.

X