Allowable permit axle weights - 10 ton roads
| Axle Groups | Spring Load Restriction | Middle-Range Restriction | Unrestricted |
|---|---|---|---|
| Single | 20,000 lbs. | 22,000 lbs. | 24,000 lbs. |
Tandem 3'-5" to 8'-0" between axles |
34,000 lbs. | 36,000 lbs. | 46,000 lbs. |
Tridem 7'-0" to 9'-0" overall group spacing |
42,000 lbs. | 51,000 lbs. | 63,000 lbs. |
Spread Tridem 9'-1" or greater overall group spacing |
51,000 lbs. | 51,000 lbs. | 63,000 lbs. |
Quad 14'-0" or less overall group spacing |
51,000 lbs. | 68,000 lbs. | 72,000 lbs. (Annual Trip Log) 80,000 lbs. (Single Trip) |
Spread Quad 14'-1" or greater overall group spacing |
68,000 lbs. | 68,000 lbs. | 72,000 lbs. (Annual Trip Log) 80,000 lbs. (Single Trip) |
| Axle group limits | Not to exceed 20,000 lbs. on any one axle in group (SLR) |
Not to exceed 22,000 lbs. on any one axle in group (Middle) |
Not to exceed 24,000 lbs. on any one axle in group (Unrestricted) |