<p>Work has begun on the final stage of the $440m Kenwick rail tunnel, the Western Australian Government said.</p> <p>The government has awarded John Holland the $14.2m construction contract for the tunnel, which is part of the railway spur being constructed from the Armadale line to Thornlie.</p> <p>Construction work also involves the relocation of around 1.4 km of the Woodbridge-to-Kwinana freight railway.</p> <br />
