Interstate 465 Totally Explained

Everything about I-465 totally explained

Interstate 465 (I-465) is the beltway circling Indianapolis, Indiana, United States. It is roughly rectangular in shape and has a perimeter of approximately 53 miles (85 km). It lies almost completely within the boundaries of Marion County, except for two short sections on the north end in Boone and Hamilton Counties. It crosses I-65, I-69, I-70 and I-74, and provides additional access to I-65 via I-865. It also intersects with the Sam Jones Expressway, which leads to Indianapolis International Airport. An $800 million project is underway to refurbish the western edge of the loop, with an estimated completion in 2014 (see "External Links").

Route description

Much of I-465 replaced the routing of the defunct parallel State Road 100.
Except for I-65 and I-70, no numbered highways run through downtown Indianapolis. All routes that continue from one side to the other run around the city, concurrent with I-465:

Interstate 74, counterclockwise from exit 16 to exit 49
U.S. Highway 31, counterclockwise from exit 2 to exit 31
U.S. Highway 36, counterclockwise from exit 13 to exit 42
U.S. Highway 40, counterclockwise from exit 12 to exit 46
U.S. Highway 52, clockwise from exit 25 to exit 47 (originally counterclockwise from exit 20 to exit 48)
U.S. Highway 421, counterclockwise from exit 49 to exit 27
State Road 37, counterclockwise from exit 4 to exit 37 (originally only from exit 4 to exit 2)
State Road 67, counterclockwise from exit 8 to exit 42 The approximately one-mile section between exits 46 and 47 carries eight routes - I-465, US 31, US 36, US 40, US 52, US 421, SR 37 and SR 67. It may also carry Interstate 69 in the future.

It should be noted that in most cases, markers other than I-74's are not posted along I-465 itself; rather, signs

on onramps direct traffic following a particular route to follow I-465 to a particular exit to continue on that route.

History

In 2002, Indianapolis native David Letterman's late-night talk show sidekick and band leader Paul Shaffer was honored by having a street in Thunder Bay, Ontario named for him. This led Letterman to ask (on his program) why he couldn't have his own eponymous road, and he suggested I-465 be named the David Letterman Expressway. His fans took the idea seriously, especially in the Indianapolis area where highway signs promoting the idea were displayed. Advertisers and traffic reports started to refer to I-465 as the "DLX", or later the "David Letterman Bypass", a reference to his quintuple heart bypass surgery in January 2000. Letterman even telephoned the Mayor of Indianapolis, Bart Peterson to make his case, but eventually the idea went nowhere.

Exit list

County	Location	Mile	#	Destinations	Notes
Marion	Indianapolis	2			West end of US 31 overlap; signed as exits 2A (north) and 2B (south)
		4			West end of SR 37 overlap
		7		Mann Road	Westbound exit and eastbound entrance
		8			North end of SR 67 overlap
		9		, St. Louis	Signed as exits 9A (east) and 9B (west)
		11		Airport Expressway – Indianapolis International Airport	Signed as exits 11A (east) and 11B (west)
		12			North end of US 40 overlap; signed as exits 12A (east) and 12B (west)
		13			North end of US 36 overlap; signed as exits 13A (east) and 13B (west)
		14		10th Street	Signed as exits 14A (east) and 14B (west)
	Speedway	16	16A
	Indianapolis	16	16B	– Peoria	North end of I-74 overlap
		17		38th Street
		19		56th Street	Northbound exit and southbound entrance
		20		– Chicago	Northbound exit and southbound entrance
		20			Southbound exit and northbound entrance
		21		71st Street, 73rd Street
		23		86th Street
Boone		25		– Chicago	West end of US 52 overlap
Marion	Indianapolis	27			West end of US 421 overlap
Hamilton	Carmel	31			West end of US 31 overlap
Marion	Indianapolis	33
		35		Allisonville Road
		37	37A	Binford Boulevard – Indianapolis	Eastbound exit and westbound entrance
		37	37B		North end of SR 37 overlap; signed as exit 37 northbound
		40		Shadeland Avenue, 56th Street
	Lawrence	42			North end of US 36/SR 67 overlap
	Indianapolis	44		, Dayton	Signed as exits 44A (west) and 44B (east) northbound
		46			North end of US 40 overlap
		47			South end of US 52 overlap
		48		Shadeland Avenue	Northbound exit and southbound entrance
		49		– Cincinnati	North end of I-74 overlap; south end of US 421 overlap
	Beech Grove	52		Emerson Avenue
	Indianapolis	53		, Louisville	Signed as exits 53A (north) and 53B (south)

Further Information

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