Tohma Bridge

38°30′17″N 38°14′19″E / 38.50483°N 38.23863°E / 38.50483; 38.23863CarriesMotor vehiclesCrossesKarakaya Dam ReservoirLocaleTohma, Malatya Province, TurkeyBegins2018Other name(s)Şehit Gaffar Güneş Köprüsü
Martyr Gaffar Güneş BridgeCharacteristicsDesignBox girder bridgeMaterialPrestressed concreteTrough constructionSteelPier constructionBored pileTotal length517.5 m (1,698 ft)Width16.5 m (54 ft)Height21 m (69 ft)Longest span34.5 m (113 ft)No. of spans15No. of lanes2HistoryContracted lead designerZiver İnşaat Co.Constructed byPYES Co.Inaugurated6 February 2021; 3 years ago (2021-02-06)Location

Tohma Bridge (Turkish: Tohma Köprüsü), also known as Martyr Gaffar Güneş Bridge (Şehit Gaffar Güneş Köprüsü), is a road bridge in Malatya Province, eastern Turkey.

The bridge crosses the Karakaya Dam reservoir on the State road D.875 between the provinces Malatya and Sivas.^[1] It is to connect Eastern Anatolia and Southeastern Anatolia regions with Black Sea Region via Malatya.^[2]

Started in 2018, it was designed as a box girder bridge and built with prestressed concrete using incremental launch method by PYES Co. under the contractor Ziver İnşaat Co.^[2][3] For the construction of the bridge were 12,000 m³ (420,000 cu ft) concrete, 2,700 tons steel for girders of 3 m × 16 m (9.8 ft × 52.5 ft) dimension and 4,360 m (14,300 ft) bored pile used. It features seismic base isolators on both ends to withstand earthquakes.^[2] Opened on 6 February 2021, the bridge is 517.5 m (1,698 ft) long, 16.5 m (54 ft) wide and 21 m (69 ft) high with a total of 15 spans of 34.5 m (113 ft).^[1][2][3] It carries two lanes in each direction.^[1]