SUBSCRIBE to the Fact of the Week
Although all states allow the conventional combinations consisting of two 28-foot semi-trailers, only 14 states and six state turnpike authorities allow longer combination vehicles (LCVs) on some parts of their road networks. LCVs are tractors pulling a semi-trailer and trailer, with at least one—the semi-trailer, the trailer, or both—longer than 28 feet. The routes that these LCVs can travel have not changed since 1991.
Routes Where Longer Combination Vehicles Are Permitted, 2014
Note: Empty triples are allowed on I-80 in Nebraska.
Supporting Information
| States or State Turnpike Authorities that Allow LCVs on Selected Routes | |
|---|---|
| Alaska | Oklahoma |
| Colorado | Oregon |
| Florida Turnpike Authority | Nebraska |
| Idaho | Nevada |
| Indiana Turnpike Authority | New York Turnpike Authority |
| Kansas Turnpike Authority | North Dakota |
| Massachusetts Turnpike Authority | South Dakota |
| Missouri | Utah |
| Montana | Washington |
| Ohio Turnpike Authority | Wyoming |
Source: | |