NSW Culvert Upgrades Project (CUP) Early Works Culvert Installation
Tender ID: 589127
Tender Details
Tender Description
With natural disasters occurring more frequently and with higher impact, the resilience of the ARTC Network is being challenged and outages on our network are becoming more frequent as a result. Recent flooding events in 2021 and 2022 demonstrate, extreme weather events are a leading cause of network outages and disruptions with major economic and social consequences.
ARTC engaged independent specialists to undertake hydrology analysis to understand the potential impacts to the ARTC Network. All existing culverts across the ARTC network have been assessed through detailed independent hydrology modelling to ascertain the degree of flooding risk against a defined flooding event of 1in100 plus Climate Change to identify which assets may be at risk of failure.
Culvert sites identified through independent Flood Modelling Analysis as at risk of washout in a 1in100 year plus Climate Change event, and determined to not be at risk of regional inundation have been targeted for upgrade. This package of works targets high priority locations all situated on the ARTC Corridor between Tahmoor and Tallong in NSW.
The scope of works is to upgrade 8 culverts in the Main South Line between 94.58km and 183.317km. Upgrade includes demolishing an existing culvert and installing a new culvert configuration and scour protection, reconstruction of access tracks and cess drains.
The upgrade will increase the overall cross-sectional area available to discharge water on the site increasing the Resilience, in terms of both improved Resistance and improved Reliability, of the track and culvert assets in the prescribed flood event.