TM 9-2320-361-10 1-28. TABULATED DATA (Contd) NOTE Bridges along your route may be marked with a class number. The bridge class number shows the safe capacity of the bridge. If your vehicle class number is equal to or less than the bridge class number, the bridge will hold your vehicle. If your vehicle class number is greater than the bridge class number, your vehicle is too heavy for the bridge: DO NOT CROSS. For more information, refer to FM 5-36. A vehicle equipped with a front winch has the same vehicle class number as it does without a front winch. Table 1-5. Vehicle/Bridge Classification * Weight of semitrailer and payload must be known to determine class number Table 1-6. Tire Inflation Data 1-16