| Country: | IRN |
| Type: | road |
| Route: | 16 |
| Terminus A: | Astara, Gilan |
| Terminus B: | Serow, West Azarbaijan Turkey |
| Length Km: | 428 |
| Provinces: | Gilan, Ardabil, East Azerbaijan, West Azerbaijan |
| Cities: | Ardabil, Ardabil Sarab, Ardabil Tabriz, East Azerbaijan Urmia, West Azerbaijan |
| Junction: | |
| Map Custom: | yes |
Road 16 is a road in the northwest of Iran, which starts from Gilan and passes the cities of Tabriz, Ardabil and Sarab and is connected to Turkey.[1] Some important stretches of Road 16 include Urmia Lake Bridge.[2]
See main article: Urmia Lake Bridge. This bridge goes through Lake Urmia and connects East Azerbaijan and West Azerbaijan. The highway was completed on 23 Aban, 1387 (13 November 2008). The bridge is the largest bridge project in Iran. This bridge is the longest bridge with seventeen hundred meters and the distance between Tabriz and Urmia contains 135 kilometers reduction. Passing the bridge the distance from Tehran to Urmia is 780 kilometers. This bridge has an important role in the development of the cultural exchanges and tourism and trade between the two provinces of East Azerbaijan and West Azerbaijan and saves time and fuel consumption and reduce road accidents.