Nunteknik undertook the repairement of orthotropic cracks on Fatih Sultan Mehmet Bridge. Even though the crack quantity on this bridge is more than threefold of cracks on Bosphorus Bridge, Nunteknik was able to complete all works within a very short period of time by relying on its experience gained in Bosphorus Bridge. Turn-of-nut method has also been used in this project. However, crack types are much in this project. Therefore, Nunteknik are using different methods for repairing each crack types.