Table 2-9: Maximum Posted Speed Limits by Type of Road: 2008
Table 2-9: Maximum Posted Speed Limits by Type of Road: 2008
(Speed limit in miles per hour)
State | Interstate | Other limited-access roads1 | Other roads | |
---|---|---|---|---|
Rural | Urban | |||
Alabama | 70 | 65 | 65 | 65 |
Alaska | 65 | 55 | 65 | 55 |
Arizona | 75 | 65 | 65 | 65 |
Arkansas | 70; Trucks: 65 | 55 | 602 | 55 |
California | 70; Trucks: 55 | 65, Trucks: 55 | 70 | 65 |
Colorado | 75 | 65 | 65 | 65 |
Connecticut | 65 | 55 | 65 | 55 |
Delaware | 65 | 55 | 65 | 55 |
District of Columbia | NA | 55 | NA | 25 |
Florida | 70 | 65 | 70 | 65 |
Georgia | 70 | 65 | 65 | 65 |
Hawaii | 60 | 50 | 45 | 45 |
Idaho | 75; Trucks: 65 | 75 | 65 | 65 |
Illinois | 65 | 55 | 65 | 55 |
Indiana | 70; Trucks: 65 | 55 | 60 | 55 |
Iowa | 70 | 55 | 70 | 55 |
Kansas | 70 | 70 | 70 | 65 |
Kentucky | 65; 70 on specified segments of road3 | 65 | 65 | 55 |
Louisiana | 70 | 70 | 70 | 65 |
Maine | 65 | 65 | 65 | 60 |
Maryland | 65 | 65 | 65 | 55 |
Massachusetts | 65 | 65 | 65 | 55 |
Michigan | 70 (trucks 60); <70 (trucks 55) | 65 | 70 | 55 |
Minnesota | 70 | 65 | 65 | 55 |
Mississippi | 70 | 70 | 70 | 65 |
Missouri | 70 | 60 | 70 | 65 |
Montana | 75; Trucks: 65 | 65 | Day: 70; Night: 65 | Day: 70; Night: 65 |
Nebraska | 75 | 65 | 65 | 60 |
Nevada | 75 | 65 | 70 | 70 |
New Hampshire | 65 | 65 | 55 | 55 |
New Jersey | 65 | 55 | 65 | 55 |
New Mexico | 75 | 75 | 65 | 55 |
New York | 65 | 65 | 65 | 55 |
North Carolina | 70 | 70 | 70 | 55 |
North Dakota | 75 | 75 | 70 | 65 |
Ohio | 65 | 65 | 55 | 55 |
Oklahoma | 75 | 70 | 70 | 70 |
Oregon | 65; Trucks: 55 | 55 | 55 | 55 |
Pennsylvania | 65 | 55 | 65 | 55 |
Rhode Island | 65 | 55 | 55 | 55 |
South Carolina | 70 | 70 | 60 | 55 |
South Dakota | 75 | 75 | 70 | 70 |
Tennessee | 70 | 70 | 70 | 65 |
Texas | Cars:4 75 Day; 65 Night Trucks: 70 Day; 65 Night | Day: 70, Night: 65 | Day: 75, Night: 65 | Day: 60, Night: 55 |
Utah | 755 | 65 | 75 | 65 |
Vermont | 65 | 55 | 50 | 50 |
Virginia | 706 | 706 | 65 | 55 |
Washington | 70, Trucks: 60 | 60 | 60 | 60 |
West Virginia | 70 | 55 | 65 | 55 |
Wisconsin | 65 | 65 | 65 | 55 |
Wyoming | 75 | 60 | 65 | 65 |
1 Limited-access roads are multilaned roads with restricted access using exit and entrance ramps rather than intersections.
2 Upon completion of a study, due to be completed on or before 09/15/08, the speed limit on any 2-lane highway or 4-lane highway shall be increased to 65 miles per hour if the findings of the study support the increase on a particular 2-lane highway or 4-lane highway.
3 On 07/10/07, highway officials increased the speed from 65 mph to 70 mph on Interstate 75 south of US 42, Interstate 71 west to the split to Louisville, and portions of Boone Carroll, Gallatin, and Grant Counties.
4 Sections of interstates 10 and 20 in Texas have speed limits of 80 mph for passenger cars and light trucks, 70 mph for large trucks in daytime, and 65 mph for large trucks at night.
5 Effective May 5, 2008 portions of I-15 have a posted limit of 80 mph.
6 Effective 07/01/10, the posted limit may be as high as 70 mph where indicated by lawfully placed signs, erected subsequent to a traffic engineering study.
KEY: NA = not applicable.
NOTES: Interstates are divided into urban and rural sections based primarily on population size and population density. Many roads, particularly urban interstates, often have a lower posted speed limit than the maximum allowable shown in this table.
SOURCE: Insurance Institute for Highway Safety - Highway Loss Data Institute, Maximum Posted Speed Limits for Passenger Vehicles, available at http://www.iihs.org/laws/SpeedLimits.aspx as of Apr. 13, 2010.