for 20' containers: 4.8 tons (10,582 lbs) per running meter in length, and 7.6 tons (16,755 lbs) for steel floor containers only for 40' containers: 3 tons per running meter in length, and 6.0 tons (6,614 lbs) for steel-floor containers only load must not exceed maximum payload Gooseneck tunnel on 40' containers