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Keep in mind that the speed limit is a guideline. Weather, road conditions, and terrain are other important factors that must be considered when determining appropriate speed.
State | Speed Limit (except when otherwise posted) |
---|---|
Alabama | 70 mph on rural interstate; 65 mph on selected 4-lane highways. |
Alaska | 65 mph. |
Arizona | 75 mph on rural interstates. 65 mph on other highways. |
Arkansas | 75 mph 70 mph (vehicle or combination of vehicles with a GVWR, GCWR, GVW, or GCW of 26,001 pounds or more) |
California | 55 mph on all highways for the following vehicles: 1. A motortruck or truck tractor having three or more axles or any motortruck or truck tractor drawing any other vehicle; 2. A passenger vehicle or bus drawing any other vehicle; 3. A school bus transporting any school pupil; 4. A farm labor vehicle when transporting passengers; 5. A vehicle transporting explosives; 6. A trailer bus, as defined in Section 636. |
Colorado | 75 mph on specific sections of rural interstate; 65 mph on surfaced 4-lane interstates; 55 mph other highways; 40 mph open mountain highways. |
Connecticut | 65 mph on interstate highways; 65 mph on limited access state highways. |
Delaware | 65 mph on specified highways; 55 mph on other highways. |
District Of Columbia | 55 mph on all highways. |
Florida | 70 mph on rural interstates; 65 mph on selected 4-lane highways; 55 mph on most other highways. |
Georgia | 70 mph on interstate highways; 55 mph to 65 mph on other highways. |
Hawaii | 40 mph to 60 mph depending on highway used. |
Idaho | 80 mph on designated portions of interstates; 75 mph on interstates; 70 mph on designated portions of interstates for vehicles with 5 or more axles operating at a gross weight of more than 26,000 pounds; 65 mph on interstates for vehicles with 5 or more axles operating at a gross weight of more than 26,000 pounds; 70 mph or less on state highways. |
Illinois | 70 mph on rural interstates; 65 mph on 4-lane divided highways; 55 mph on all highways (or as posted); 60 mph (or as posted) for a second division vehicle designed or used for the carrying of a gross weight of 8,001 pounds of more (including the weight of the vehicle and maximum load) outside an urban area in Cook, DuPage, Kane, Lake, McHenry, and Will counties. |
Indiana | 70 mph on interstates and certain state highways if the vehicle has a declared gross weight of 26,000 pounds or less; 65 mph on interstates and certain state highways if the vehicle has a declared gross weight of more than 26,000 pounds; 60 mph on selected, divided highways. |
Iowa | 70 mph on interstate roads; 65 mph on fully controlled-access, divided, multi-laned highways; 55 mph on other highways. |
Kansas | 75 mph on rural interstates; 55 mph to 65 mph on other highways. |
Kentucky | 70 mph on selected interstate highways and parkways; 65 mph on interstate highways and parkways; 55 mph on all other state highways; 35 mph at all times in business and residential districts. |
Louisiana | 70 mph on non-urban interstate; 55 to 60 mph other highways. |
Maine | 75 mph on interstates and other divided controlled-access highways; 60 mph (or as posted) on other highways. |
Maryland | 70 mph on most rural interstates; 50 mph to 55 mph on other highways. |
Massachusetts | 65 mph on designated highways; 55 mph or less on other highways. |
Michigan | 65 mph for a truck with a gross weight of 10,000 pounds or more, a truck-tractor, truck-tractor with a semi-trailer or trailer, or combination of these vehicles. |
Minnesota | 70 mph on rural interstates; 55 mph to 65 mph on other highways. |
Mississippi | 70 mph on rural interstates; 65 mph on 4-lane highways; 55 mph on all other highways. |
Missouri | 70 mph on rural interstates; 65 mph on rural expressways; 60 mph on urban interstates; 55 mph on state highways. |
Montana | Straight trucks or truck-tractors with single/double trailers over one ton manufacturer's rated capacity are limited to: 70 mph on rural interstates; 65 mph on other highways. |
Nebraska | 75 mph on rural interstates; 70 mph on state highway system freeways and expressways; 65 mph on most other 2-lane highways. |
Nevada | 55 mph to 80 mph. |
New Hampshire | 70 mph on I-93 from mile marker 45 to the Vermont border; 65 mph on rural interstates; 55 mph elsewhere. |
New Jersey | 65 mph on designated interstates; 55 mph on designated state highways and all interstates. |
New Mexico | 75 mph on rural interstates. |
New York | 65 mph on designated roadways; 55 mph elsewhere. |
North Carolina | 70 mph on rural interstates; 55 mph to 65 mph on non-interstate highways with controlled access. |
North Dakota | 75 mph on interstate highways; 70 mph on multi-lane divided highways; 65 mph on paved 2-lane highways |
Ohio | 70 mph on Ohio Turnpike and certain sections of interstate highways (as posted) |
Oklahoma | 75 mph on turnpikes; 70 mph on rural interstates; 65 mph on state highways. |
Oregon | 65 mph. |
Pennsylvania | 70 mph on rural interstates and expressways (as posted); 55 mph on other highways. |
Rhode Island | 65 mph on rural interstates; 55 mph on other highways. |
South Carolina | 70 mph on rural interstates; 65 mph on 4-lane roads; 55 mph on all other highways. |
South Dakota | 80 mph on designated rural interstates; 70 mph on select 4-lane highways; 65 mph on other main highways. |
Tennessee | 70 mph on rural interstates; 55 mph on urban interstates and non-interstate highways. |
Texas | 75-85 mph on specified segments of highway (when posted) outside an urban area. 70 mph outside an urban area. |
Utah | 75 mph to 80 mph on rural interstates; 65 mph on other highways. |
Vermont | 65 mph on rural interstates; 55 mph on selected urban interstates; 50 mph on all other highways. |
Virginia | 70 mph on certain rural interstates; 55 mph day or night on all other highways. |
Washington | 60 mph on rural interstates for all vehicles over 10,000 pounds gross weight and vehicles in combination (excluding auto stages); 55-60 mph day or night on all other highways. |
West Virginia | 70 mph on rural interstates; 55 mph on primary highways. |
Wisconsin | 70 mph on interstates, freeways, and expressways (where posted); 65 mph on expressways; 55 mph on two-lane highways |
Wyoming | 80 mph on rural interstates; 75 mph on rural interstates; 65 mph on 2-lane highways. |