AMC 2 Wharf Deck Infill

Project Overview

With the completion of the northward extension of Berth 1 (AMC 1) in early 2023, attention turned to optimising the efficiency and functionality of Berth 2, known as AMC 2.

AMC 2 originally served as a berthing structure situated approximately 25 meters from the shoreline. Through the infill of the open area of approximately 1,000 square meters, Geomarine transformed the berthing infrastructure into a continuous wharf deck, which has increased the wharf’s versatility for users.

AMC 2 Wharf Deck Infill project involved the design and construction of a new deck structure consisting of driven tubular steel pile foundations, supporting precast reinforced concrete beams, and deck planks with an in-situ concrete slab topping.

Fast Facts

Client Development WA
LocationHenderson, WA
Year of Completion2024
Project Value$8.1M

Scope of works

The scope of works includes:

Complete the detailed design of the new deck structure, including integration of existing services and minor service improvements
Demolish and dispose obsolete infrastructure within the AMC area, such as fencing and gangways
Demolish existing seawater pump station building, including removal of pumps and piping
Temporary decommissioning of hydraulic and electrical services from the infill area
Complete earthworks to prepare the area for new construction activities
Cut the existing sheet pile wall capping beam to allow spanning of precast beams onto a new abutment – this design prevents any adverse loading on the existing sheet pile wall itself
Supply and install new steel piles to support the new deck
Supply and install precast concrete reinforced beams and planks
Complete in-situ concrete works to precast beams, which were originally installed as hollow tub-like structures to minimize weight and streamline lifting operations
Complete in-situ concrete pouring to create the final concrete topping slab for the finished deck surface
Reinstate pre-existing electrical and hydraulic services
Remove old cathodic protection system and install upgraded system
Supply and install 3no. removable 80t rated bollards and support frames
Supply and install new removable handrail system along the existing wharf edge
Supply, install and commission new fire hydrant to cover the new construction
Reinstate asphalt to original condition