$22 Bosphorus Suspension Bridge Structure 3D model by seveng902. Available on CGTrader with 973265 polys and 973256 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 114 MB), FBX (Autodesk FBX, filesize: 42.8 MB), JPG (JPG, filesize: 713 KB), C4D (Cinema 4D, filesize: 40.9 MB)