Northern Group Site Visit - Namoi River Crossing and Water Treatment Plant

Start Time: 1:00PM AEST. Please join the Northern Group on a site visit of the Namoi River Crossing and Water Treatment Plant
Namoi River Crossing

Manilla is currently benefiting from over $20m investment in major infrastructure projects including the Namoi River Crossing Project and Manilla Water Supply Upgrade.

The existing vehicular access across the Namoi River in Manilla, is via the Manilla Bridge. The bridge was constructed in 1886 and is very narrow, 300 metres in length and has weight limitations for heavy vehicles.

The Namoi River Crossing Project will create a new bridge over the Namoi River upstream of the existing bridge. The crossing is proposed to be the new Main Road 63 and will increase safety and benefit for approximately 120,000 vehicles and almost one million tonnes of freight annually, saving almost 50,000 kilometres and over 6,800 hours of travel per year.

The new bridge is 140m in length, will have a clear carriageway width of 9m, and be constructed with 24m super-t girders.

The Manilla Water Supply Upgrade will provide the Manilla community with a more reliable supply of treated water and deliver improvements in the quality of their water.

The existing Water Treatment Plant in Court Street has been in use since 1933. Much of this infrastructure is approaching or past its useful service life.

The current location of the plant is also an issue due to its proximity to residences, the hospital and a nursing home. Onsite storage of chlorine gas makes it desirable to have a buffer zone separating the plant from nearby residences (although the current system still complies with regulations).

A new water treatment plant capable of treating up to 3.5 megalitres a day will be built on a 34-hectare site, and the new plant will treat water from both the Namoi River and Manilla River.

Your guides on the day will be Dan Stewart and Ian Cross, Senior Design Project Engineer and Senior Project Engineer from Tamworth Regional Council.

Numbers for this event are strictly limited so register early!

PPE required - Enclosed shoes, hi-vis vest & hard hat

View PDF for more infomation.


06 / 05 / 2021 - 01:00 pm to 04:00 pm
Registration Closes
05 / 05 / 2021 05:00 pm
Northern Bridge abutment
Arthur Street
New South Wales
Event Registration
  • Member/Member Guest Rate: $0.00 ($0.00 excl. GST)
  • Technical Society Member Rate: $30.00 ($27.27 excl. GST)
  • Student: $0.00 ($0.00 excl. GST)
  • Non-Member Rate: $30.00 ($27.27 excl. GST)
Event Contact
  • Contact:
    Engineers Australia Member Services
  • Phone:
    1300 653 113
  • Email:
Maximum CPD Hours