In 2016 prior to watering, the Twentysixth Street site was dominated by black box trees, lignum, nitre goosefoot, and samphire. The first watering at the site occurred in 2017.
By 2020, the delivery of environmental water over successive watering years encouraged a pair of swans to nest. Another pair of swans nested in June 2025 and were successful in raising four cygnets. Environmental water delivery has resulted in a notable increase in native duck species and other birdlife. 20 waterbird species, 22 woodland bird species, and 7 frog species have been recorded at the site.
Significant numbers of black box seedlings germinated following the 2022-23 flood. A small amount of environmental water was used in 2023-24 to support the survival and establishment of the seedlings. Environmental water was then delivered in autumn 2025 and 2026 to continue to support these seedings, which are now thriving.
