Rail and Transport
ARMCO Culvert Life Extension
Value
Completed
Client
ND
Metro Trains
Value
ND
Completed
Client
Metro Trains
Multiworks was engaged to deliver critical infrastructure upgrades along the Frankston to Stony Point Line, targeting seven large ARMCO culverts that support the single-track rail corridor across multiple waterway crossings. These culverts play a vital role in the safe operation of the line, managing stormwater flow beneath the rail alignment and ensuring long-term asset stability.
Project Description
Works were delivered at two key locations—Kings Creek (2 x 2400 mm diameter pipes) and Warringine Creek (4 x 3600 mm diameter pipes)—where corrosion and age had compromised the structural performance of the existing culverts.
To extend asset life and minimise future maintenance requirements, Multiworks applied a full internal shotcrete lining to each steel culvert, restoring structural integrity and enhancing long-term durability in high-moisture environments. In addition, apron slabs and revetment walls were constructed to protect against scour and erosion, improving hydraulic performance and overall resilience of the track formation.
Scope highlights:
- Internal shotcrete relining of seven large ARMCO culverts
- Construction of apron slabs and revetment walls at both sites
- Works delivered under live rail conditions with minimal disruption
- Long-term structural and environmental risk mitigation
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