| Country: | CUB |
| Alternate Name: | Havana-Melena Motorway |
| Type: | A |
| Route: | 3 |
| Map: | Autopistas de Cuba (network map).png |
| Map Notes: | Map of the Cuban motorway network |
| Length Km: | 32 |
| Direction A: | North |
| Terminus A: | Autopista A2 (Havana) |
| Direction B: | South |
| Terminus B: | 2–740 (Melena del Sur) |
| Cities: | Havana, Melena del Sur |
The Autopista A3, also known as Autopista Havana-Melena,[1] is a Cuban motorway linking Havana to Melena del Sur.[2] It is a toll-free road and has a length of 32km (20miles).
The A3 is a dual carriageway with 4 lanes and has some at-grade intersections with rural roads. It starts in Havana, from an interchange of the Havana Beltway (A2), and continues through Mayabeque Province; crossing the western side of the municipality of San José de las Lajas, and ending on a provincial highway, 2 km west of Melena del Sur.
| AUTOPISTA A3 (La Habana–Melena) | |||||
| Exit | ↓km↓ | Province | Note | ||
|---|---|---|---|---|---|
| Primer Anillo (Havana Beltway) | 0.0 | Havana | |||
| Habana Las Guásimas | 5.8 | Havana | |||
| 10.2 | Havana | ||||
| Nazareno | 16.8 | Mayabeque | |||
| San Antonio de las Vegas | 20.0 | Mayabeque | |||
| La Ruda-San Antonio de las Vegas | 26.0 | Mayabeque | |||
| Guara-Marañón | 27.7 | Mayabeque | |||
| Melena del Sur | 32.5 | Mayabeque | |||