28 Apr Long Swamp Restoration Trial – Phase 3 structure is complete!
After an inspired effort from our crew on Monday, it is great to be able report that on Day 9 of works we completed the job!
Isn’t the phase 3 structure – with a total of about 6,600 sandbags in place – quite a sight?
From the downstream side (above images) it is a pretty imposing looking structure – but a view from the upstream side helps to bring things into perspective…
As predicted, lifting the weir above the standing water level in the swamp on the last day (Day 9) of sandbagging, to our target height, has been met with a slower response in water levels upstream.
As we have now inundated the Phase 2 structure, every incremental rise in water elevation is having to cover an increasing area of wetland habitat within the swamp upstream – so the rapid height increases we saw a couple of weeks ago (when the channel was first filling) are now a distant memory.
And now, for the final, and most important view; of habitat in Long Swamp itself. Despite the imposing sight of the Phase 3 structure, it is this view that (along with our ecological monitoring program) will tell us about the success of the trial over the months and years ahead. Monitoring water levels and habitat change at this location and further into the adjacent portion of Long Swamp are going to be very revealing!