Skip to contentU.S. Department of Transportation/Federal Highway Administration


Printable version of this page [PDF, 17KB]
To view PDF files, you can use the Acrobat® Reader®.


Urban Highways with the Most Lanes

State Urban Area Route Lanes
Georgia Atlanta I-75 15
Maryland Baltimore US-50 14
Kentucky Louisville (KY-IN) I-65 14
Georgia Atlanta I-85 14
New Jersey New York-Newark (NY-NJ-CT) I-95 14
California Los Angeles-Long Beach-Santa Ana I-405 14
Maryland Baltimore I-895 14
Washington Seattle I-5 13
Arizona Phoenix I-10 13
Kentucky Louisville (KY-IN) I-264 13
Maryland Washington (DC-VA-MD) I-270 13
Georgia Atlanta I-285 13
New Jersey New York-Newark (NY-NJ-CT) I-287 13
Delaware Dover 1 12
California Los Angeles-Long Beach-Santa Ana I-5 12
California Mission Viejo I-5 12
Texas Houston 6 12
California San Diego I-8 12
Texas Houston I-10 12
California San Diego I-15 12
Utah Salt Lake City I-15 12
Illinois Chicago (IL-IN) 53 12
Texas Houston US-59 12
Arizona Phoenix US-60 12
Texas Amarillo US-60 12
Kentucky Louisville (KY-IN) I-65 12
New Jersey New York-Newark (NY-NJ-CT) I-78 12
California San Francisco-Oakland I-80 12
Connecticut Hartford-Middletown I-84 12
Illinois Chicago (IL-IN) I-90 12
California Los Angeles-Long Beach-Santa Ana 91 12
California Riverside-San Bernardino 91 12
Florida Miami I-95 12
Michigan Detroit I-96 12
California Los Angeles-Long Beach-Santa Ana I-110 12
California San Jose I-280 12
District of Columbia Washington (DC-VA-MD) I-395 12
Nevada Las Vegas 589 12
Texas Houston I-610 12
California Concord I-680 12
California San Diego I-805 12
Florida Miami 826 12
Hawaii Honolulu I-H1 12

Office of Highway Policy Information
Data Source: 2008 Highway performance Monitoring System (HPMS)
July 27, 2010

Note: The number of lanes represents the total number of lanes in both directions for multi-directional facilities e.g. northbound and southbound lanes. Does not include toll plazas.