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YEAR:
Major works included:
Design of temporary works and the installation of a sheet piled cofferdam and dewatering to control the water from the lake and river.
Demolition of all the existing infrastructure.
Excavation and subgrade improvements including 8m timber piles with concrete slab foundations.
The new inlet structure comprised of a precast wing-wall installed onto a new concrete slab which was founded on timber piles.
The new outlet structure comprised of precast concrete walls placed onto a concrete slab foundation. The panels were tied in with a concrete floor and in-situ stitch joints.
The installation of a new 1200mm PE culvert.
The removal and replacement of all mechanical componentry with the installation of a new flap gate.
Site reinstatement which included retaining walls, timber fences, metal access tracks and grassing.
This project was completed in May 2018.