SEVERAL Western Australian developers and civil engineers have been recognised for achieving best practice and innovation in the field of civil construction, at the annual WA Earth Awards held at the Burswood Resort this month. Marsh Civil Engineering Contractors Pty Ltd and Stockland South Beach Pty Ltd were judged best afield in the $5 million and $15 million project value category for their remediation of the heavily contaminated South Beach Islands site, near Fremantle. The project called for the demolition of the former ANI Bradken foundry building in progressive stages which allowed the structure to be used for the containment of 11,000 stockpiles of contaminated materials. The companies had to contend with the removal of a solidified molten slag tract underground, as well as controlling dust, contaminated soil transfer and safety issues across the site. Works Infrastructure Pty Ltd and Connell Wagner also emerged as winners on the night, recognised in the $1 million to $5 million project category for the construction of a new principal shared path and bridged boardwalk on the Mount Lawley foreshore. The project team encountered many challenges in constructing the bridge at Banks reserve, including unstable geotechnical conditions, acid sulphate soils and a complex hydrology. Both winning projects are eligible for inclusion in the national Earth Awards, to be held in Alice Springs on October 27.