Multilane Interstates

This works-in-progress table lists those Interstate highways with continuous stretches of at least 3 through lanes in each direction, for a minimum total of 6 through lanes. To qualify, the given section of Interstate must maintain a minimum of 3 lanes in each direction for at least 5 miles and/or THROUGH at least 3 full interchanges. The lane counts must be maintained THROUGH every interchange along the given section. Express or HOV lanes will count on the condition that they connect to the through lanes on each end.

This table is organized first by route, then by order of section from west-to-east or south-to-north. NOTE: This listing does *NOT* include all 6+ lane Interstates meeting the above criteria, as there are many Interstate segments that the author is not aware of the status for.

ROUTE	STATES	START POINT	END POINT	APPROX. LENGTH
I-10	AL	Exit 17/AL 193 interchange ramps	Exit 26/Water St interchange ramps	9 miles
I-20/59	AL	Exit 118/Valley Rd interchange ramps	Exit 134/AL 75 interchange ramps (on I-59)	16 miles
I-20	AL	Exit 133/Kilgore Dr interchange ramps	Exit 140/US 78 interchange ramps	7 miles
I-65	AL	Exit 0/I-10	Near MP 11 (currently) Exit 13/AL 158 interchange ramps (U/C)	11 miles currently 13 miles upon completion of construction
I-65	AL	Exit 173/AL 152 interchange ramps	Near Exit 179/AL 6	6 miles
I-65	AL	Exit 247/CR 17 interchange ramps	Exit 261/I-20/59 interchange ramps	14 miles
I-65	AL	Exit 261/I-20/59 interchange ramps	Near MP 291	30 miles
I-85	AL	I-65	Near MP 7	7 miles
I-40	AR/TN	Exit 281/AR 131 interchange ramps	Exit 1E/I-240 interchange ramps	6 miles
I-95	MD/DE	Exit 64/I-695 interchange ramps	I-495 ramps near Wilmington, DE	58 miles
I-495	DE	Exit 1/US 13 ramps	Exit 5/US 13 ramps	7 miles
I-295	DE/NJ	US 13/40 ramps	NJ TPK split	5 miles
I-75	FL	Exit 200/FL 681 ramps	Exit 261/I-4 ramps	61 miles
I-75	FL/GA	Exit 329/FL TPK ramps	Exit 16/US 84 ramps	158 miles
I-20	GA	Exit 24/GA 61 ramps	Exit 57/I-75/85 ramps	33 miles
I-75/85	GA	Exit 246/I-20 ramps	Exit 251/I-75/I-85 split	5 miles
I-75	GA/TN	Exit 259/I-285 ramps	Exit 2/I-24 ramps	96 miles
I-85	GA	Near MP 56	Exit 68/I-285 ramps	12 miles
I-85	GA	Exit 85/I-75 ramps	Exit 113/I-985 ramps	18 miles
I-285	GA	Exit 62/I-85 ramps	Exit 10/I-20 ramps	10 miles
I-494	MN	Exit 64A/Hardman Ave ramps (currently) Exit 60/Lake Dr ramps (U/C)	Exit 7AB/MN 100 ramps (currently) Exit 11AB/MN 5 West ramps (U/C)	16.5 miles currently 24 miles upon completion of construction
I-64	VA	Exit 276/I-564 ramps	Exit 291/I-464/VA 168 South overpass	15 miles