Waterway restoration - Yarralumla Creek (Yarralumla Creek Catchment)
The Yarralumla Creek catchment is one of the oldest urbanised areas in the ACT. Only small remnant areas of nature reserve survive with the main waterway, Yarralumla Creek, discharging high sediment and nutrient loads into the Molonglo River.
This waterway restoration on Yarralumla Creek, approximately two kilometres upstream from the confluence with the Molonglo River, is designed to reduce erosion, particularly on the Creek banks.
The works, immediately downstream of the engineered concrete channel servicing the Yarralumla urban catchment, include the repair or heavily eroding banks of the Creek with, concrete blockwalls, gabions and reinforced planting, and repair of various patches of scour in and around the channel using reno mattress.
Current modelling indicates that soil loss from erosion on this reach of the creek is approximately 147,000 kilograms per year. Once work is complete soil loss is expected to be reduced by approximately, 132 000 kilograms (90 per cent).
Likely construction finish date
+Works may be delayed by a number of factors, including bad weather. Planting is part of the construction phase and the timing of the growing season may impact on construction timelines.
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How this project might impact you
- Trucks will pass in and out of the area during the improvement work. Routes have been established to minimise traffic disruption and noise
- Any detours for walkers and cyclists will be in place and will be clearly signposted
- The site will be fenced for public safety
- The contractor has prepared a Construction Environment Management Plan (CEMP) to detail how it will deal with flora and fauna issues.