Smith Street Motorway (SR10) (or the Smith Street extension) is a motorway grade extension of Smith Street. It connects Southport, the Gold Coast's CBD to the Pacific Motorway.

The road is motorway standard for 5 kilometres (3.1 mi) from the Pacific Motorway (exit 66), until the Parklands Drive intersection. It then runs as a divided road until High Street in Southport, where it becomes North Street until the Gold Coast Highway. The motorway passes by the city's Health and Knowledge precinct, home to Griffith University, Gold Coast University Hospital and Gold Coast Private Hospital.

A new iconic red bridge for pedestrians across Smith Street was completed in early 2007. The red bridge joins the existing parklands campus of Griffith University to the new site on the southern side of the Smith Street Motorway.

The highest point of the motorway is 45 metres at the Smith Street Motorway interchange near the Pacific Motorway at Gaven.

The entire motorway is in the City of Gold Coast local government area.

Location	km	mi	Destinations	Notes
Gaven–Arundel boundary	0	0.0	Pacific Motorway (M1) north – Brisbane	Western motorway terminus at partial Y interchange: northbound exit and southbound entrance
Arundel–Molendinar boundary	1	0.62	Smith Street to Pacific Motorway (M1) south, Coolangatta, Gaven	Partial trumpet interchange: no westbound entrance
Molendinar–Parkwood boundary	2	1.2	Precision Drive – Molendinar	Westbound exit and entrance only
Molendinar–Parkwood–Southport tripoint	4	2.5	Olsen Avenue (State Route 4) – Parkwood	Diamond interchange
Southport	5	3.1	Parklands Drive – Griffith University Gold Coast Campus	Traffic light intersection
	5.3	3.3	Smith Street (State Route 10) east / Kumbari Avenue north & south – Southport	Eastern motorway terminus at traffic light intersection
Incomplete access

• Freeways in Australia
• Freeways in Gold Coast

• Smith Street major upgrade and 24-hour T3 transit lanes