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.

  • Spring restoration tours at Glenshera Swamp, Stipiturus CP – book your free spot now! September 8, 2017 Well, it’s certainly been a busy couple of years for us at Glenshera Swamp (Stipiturus CP), as we’ve progressed from restoration planning to on-ground works. And so, after a wet July and August (and equally damp start to September), it is time to show you what this is all about – because, as much as we ...
  • Sharing the restoration plans for Square Waterhole Swamp (Hesperilla CP) September 8, 2017 Well, it’s been quite a journey over the past 12 months in getting to know another important wetland on the Fleurieu Peninsula at Hesperilla CP (just south of Mt Compass), a small remnant portion of the originally much larger Square Waterhole Swamp. After digging through the history, talking to the locals, reviewing the maps and bashing through ...
  • Tookayerta catchment report: sharing a complex story of landscape change September 8, 2017 In conjunction with the recent work completed for Hesperilla Conservation Park, Natural Resources SA MDB also asked NGT to provide a broader view and understanding of landscape change in the wider Tookayerta Catchment (around Mt Compass) on the Fleurieu Peninsula south of Adelaide – with a view to this work helping us understand where and if opportunities ...
  • Murray Crayfish Part 1: Tracking recovery of populations impacted by blackwater disturbance September 8, 2017 Over the past four years, we have continued monitoring populations in the Murray River that had suffered significant (80% decline) population loss due to the 2010‒11 extreme blackwater event. Over that time, we have only observed a gradual increase in the abundance of affected populations, and the species has not been detected at almost one-third ...
  • Murray Crayfish Part 2: First (official) reintroductions in almost a century! September 8, 2017 Fish stocking for fishery purposes is routinely undertaken, but conservation translocations remain relatively uncommon in the aquatic world (in terrestrial ecosystems however they are more widespread). On a sunny day in late July 2017, a small but important step toward the recovery of Murray crayfish was undertaken involving the release of 200 Murray crayfish into ...
  • Murray Crayfish Part 3: Status assessment of Victorian recreational fishery September 8, 2017 With the impacts (and fishing closures) occurring in New South Wales, Victoria now maintains the geographically largest recreational fishery for the species. With this in mind, it is timely that we have just finalised the most comprehensive assessment of the Victorian recreational fishery in Victoria ever undertaken. The assessment relied on population benchmarking, assessment of long-term trends ...
  • Murray Crayfish Part 4: They’re not in SA, but they could be… the search continues in the Lower Murray September 8, 2017 After four years of searching, which included over 7700 net hours (number of nets per site times by the number of hours each net was set for – that’s also 321 net days), at almost 30 sites we have failed to detect a single Murray crayfish in the South Australian section of the Murray River (e.g. ...
  • Budding young scientists explore the underwater world at Mt Burr Swamp! September 8, 2017 Lauren and Michelle recently hosted two fantastic aquatic workshops at Mt Burr Swamp for students from Newbery Park Primary School and Millicent High School. The clinics are part of the ForestrySA Schools Program which focusses on biodiversity education, including corridors. This workshop was aimed at teaching students about the importance of aquatic invertebrates and what ...
  • Managing water on the flats at Eaglehawk Waterhole – a different kind of wetland restoration September 8, 2017 Thanks to the wet spring last year, we finally saw NGT’s Eaglehawk Waterhole (our restoration reserve in the Upper South East), back to looking at its best – with large areas of shallow seasonal wetland inundating the SA blue gum and buloke woodland flats for the first time since 2013. However, we also noticed that in a ...
  • NGT welcomes new staff to the team – Ben Taylor and Michelle Sargent September 8, 2017 It’s been another busy time over recent months, and NGT are fortunate to have been joined by another couple of fantastic recruits to our team: Ben Taylor, as a Senior Wetland Ecologist based out of Adelaide, and Michelle Sargent, a recent graduate who has recently commenced a part-time intership based out of the regional NGT ...

Click here for the full list of project related blogs

No Comments

Sorry, the comment form is closed at this time.