The Super Highway begins north of Karachi at the end of Mohammad Ali Jinnah Road, near junction of Karachi Northern Bypass (also known as M10). It is connected with the Karachi Northern Bypass with a trumpet interchange. Then it continues out of the city. From there it continues on a north-east track and forms a junction with the N5 via a link road. The highway ends outside of Hyderabad, in the suburban town of Kotri with a cloverleaf interchange where it merges into the N5.
The Super Highway is in the process of being upgraded into a 6-lane access-controlled motorway, designated the "M-9". Expression of Interest (EOI) were invited by the National Highway Authority (NHA) in May 2011 The NHA awarded the Rs. 24.93 billion contract to the Malaysian construction company, Bina Puri Holdings Bhd, on Built Operate Transfer (BOT) basis. The proposed 136-km long motorway will be completed in three years. The M-9 Motorway will have 7 interchanges, 2 service areas at the midway points and 16 toll plazas on entry and exit points.