The M13 is a metropolitan route in the Ethekwini Metropolitan Municipality in the KwaZulu-Natal province of South Africa. For most of its route, it is a highway named King Cetshwayo Highway and it acts as an alternative route to the N3 highway for travel between the suburbs closer to the Durban CBD and the Outer West Suburbs (Assagay).

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Quick Facts Metropolitan route M13, Route information ...

Metropolitan route M13
Route information
Maintained by eThekwini Metropolitan Municipality
Length	35 km (22 mi)
Major junctions
East end	M4 / R102 in Durban CBD
Major intersections	M10 in Mayville N3 near Sherwood M15 in Sherwood M32 in Westville M31 near Paradise Valley N3 near Paradise Valley M5 in Pinetown M7 / M19 in Pinetown M1 / M31 in Pinetown R103 near Hillcrest M46 near Assagay
West end	N3 near Assagay
Location
Country	South Africa
Towns	Assagay, Hillcrest, Gillitts, Kloof, Pinetown, Westville, Durban
Highway system
Numbered routes of South Africa
← M12 → M15

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The route starts in the Durban Central Business District at an intersection with the M4. For the first few kilometres of its length, it runs parallel to the N3 on both sides as King Ndinuzulu Road North and King Ndinuzulu Road South (formerly Berea Road; one-way-streets). At the Tollgate Bridge, it then turns to the south and passes westwards through Mayville (where it is co-signed with the M10 for a few metres), before turning north and crossing under the N3 to pass through Sherwood.

At 45th Cutting, the route becomes a dual-carriageway freeway and remains as one for the rest of its length. The route passes over the N2 highway (Durban Outer Ring Road) westwards as a flyover and passes through Westville and Cowies Hill. The route then briefly touches the N3 at the Paradise Valley interchange (eastbound only) (motorists can drive from the N3 west onto the M13 west and from the M13 east onto the N3 east), before passing west-north-west through Pinetown.

After Pinetown, the route goes up Fields Hill, a 3 km 1:15 gradient (this section is notorious for heavy vehicle accidents that can close an entire carriageway of the road^[1][2][3]). The route then enters the Upper Highway Area,^[4] passing westwards through Kloof and Gillitts, before the R103 diverges, providing access to Hillcrest. The route then passes south of Hillcrest and through Assagay before merging with the N3 freeway (westbound only) at the Key Ridge Interchange, where it ends.

The route is roughly 35 km long.

The M13 is the main thoroughfare to Durban for residents of the nearby towns of Westville, Pinetown, Kloof, Gillitts and Hillcrest.

The M13 between the Paradise Valley interchange and its termination at the N3 (Key Ridge interchange) used to be part of the N3 route until 1986, when the N3 was re-routed to pass south of Pinetown, Westmead and Winston Park. The M13 remains an alternative route to the N3, and is commonly used by motorists wishing to avoid the Mariannhill Toll Plaza, located on the N3 outside Westmead.