The Mount Henry Bridge carries the Kwinana Freeway and Mandurah railway line over the Canning River in Perth, approximately 10 kilometres (6.2 mi) south of the Perth central business district. At 688 metres (2,257 ft) in length including abutments, it is the longest road bridge in Western Australia. It spans the river between the Mount Henry Peninsula and the suburb of Mount Pleasant.

The Kwinana Freeway is a 72-kilometre (45 mi) freeway in and beyond the southern suburbs of Perth, Western Australia, linking central Perth with Mandurah to the south. It is the central section of State Route 2, which continues north as Mitchell Freeway to Clarkson, and south as Forrest Highway towards Bunbury. A 4-kilometre (2.5 mi) section between Canning and Leach highways is also part of National Route 1. Along its route are interchanges with several major roads, including Roe Highway and Mandjoogoordap Drive. The northern terminus of the Kwinana Freeway is at the Narrows Bridge, which crosses the Swan River, and the southern terminus is at Pinjarra Road, east of Mandurah.