| O-21 | |
|---|---|
| Ankara-Tarsus Motorway (Kemerhisar-Tarsus Motorway) Ankara-Tarsus Otoyolu (Kemerhisar-Tarsus Otoyolu) |
|
| Route information | |
| Length: | 125 km (78 mi) |
| Major junctions | |
| From: | Kemerhisar, Niğde Province |
| To: | Tarsus, Mersin Province |
| Location | |
| Regions: | Central Anatolia, Mediterranean |
| Provinces: | Ankara, Konya, Aksaray, Nevşehir, Niğde, Adana, Mersin |
| Major cities: | Pozantı, Tarsus |
| Highway system | |
Otoyol 21 (English: Motorway 21), abbreviated as O-21, aka Ankara-Tarsus Otoyolu or currently Kemerhisar-Tarsus Otoyolu (English: Ankara-Tarsus Motorway or Kemerhisar-Tarsus Motorway) or , is a partly complete toll motorway in the Central Anatolia and Mediterranean regions in Turkey. Currently, it is connecting Kemerhisar in Niğde Province with the Adana-Erdemli Motorway O-51 at Tarsus in Mersin Province. On its full length, it is part of the European E90.
| Province | km | Exit No. | Destinations | Notes | |
|---|---|---|---|---|---|
| Niğde | 0 | 0 | K13 | Kemerhisar 1 | D.805 |
| 15.0 | 15.0 | K14 | Eminlik 1 | ||
| Service area Eminlik | |||||
| Niğde Adana |
Kırkgeçit Tunnel | ||||
| Adana | Çakıt Tunnel | ||||
| 33.0 | 48.0 | K16 | Pozantı | D.750 | |
| 6.5 | 54.5 | K5 | Toll plaza Pozantı | D.750 | |
| 14.0 | 68.5 | K4 | Tekir | D.750 | |
| Mersin | Aç-kapa Tunnel 800 m (2,600 ft) | ||||
| 15.0 | 83.5 | K3 | Çamalan | D.750 | |
| Parking area | |||||
| Service area Şıraköy |
|||||
| 34.0 | 117.5 | K2 | Tarsus East 1 | O-51 | |
| Toll plaza Yenice | |||||
| 7.0 | 124.5 | K1 | Tarsus East 2 | D.400 | |
|
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