Interstate 70 in Ohio

	Interstate 70; Main route of the Interstate Highway System
	Maintained by Ohio DOT
Length:	225.60 mi (363.07 km)
Formed:	1956
West end:	I-70 / US 35 at Indiana state line
Major; junctions:	I-75 near Vandalia; I-71 in Columbus; I-77 near Cambridge
East end:	I-70 at West Virginia state line
	Ohio highways
< US 68	I-71 >
	Interstates - U.S. Routes - State Routes

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In the U.S. state of Ohio, Interstate 70 provides access between Indiana and West Virginia.

[edit] Route description

From the west, Interstate 70 enters Ohio after passing through Indiana. Upon entering the state, passengers drive under a "Welcome to Ohio" arch, which also lists the names of the current governor and lieutenant governor. From here, the highway passes through the city of Dayton, Springfield, and next Columbus, the state's biggest city. After leaving Columbus, the highway heads east toward West Virginia.

[edit] History

Interstate 70 appeared on the original AASHTO interstate route numbering map from August 14, 1957. It was envisioned as a modern upgrade of the old National Pike (US-40), the main east-west route through the heart of the state, built closely parallel to, but on a separate alignment as the then overburdened and obsolete highway. The 21-mile (34 km) section between Kirkersville and Gratiot (current Exits 122 - 142), was the first new construction opened to traffic (1959). At that time, the highway was accessed at both ends via temporary at-grade intersections with the old National Pike, with I-70 and US-40 sharing the same carriageways.

Once the road was extended westward towards Columbus by 1968, access was routed to Exit 122, with the western 1-mile (1.6 km) access road continuing US-40 back to the old National Pike becoming part of OH-158 (though the westbound lanes were abandoned). The following year, the highway was opened eastward to Zanesville, with a new interchange, Exit 142, at Gratiot. The at-grade intersection with the old National Pike was subsequently blocked off, to be erased by years of overgrowth. The US-40 designation was returned to the Pike around the same time, replacing the temporary OH-440 designation.

[edit] Exit list

County	Location	#	Destinations	Notes
Preble	New Westville	1	US 35 south	East end of US 35 overlap; eastbound exit and westbound entrance
		10	US 127
	Lewisburg	14	SR 503
Montgomery	Arlington, Brookville	21	Arlington Road – Arlington, Brookville
	Clayton, Swanktown	24	SR 49 north (Dayton Greenville Pike) / Brookville Salem Pike	West end of SR 49 overlap
	Happy Corners	26	SR 49 south (Salem Avenue) / Hoke Road	East end of SR 49 overlap
	Irvington, Englewood	29	SR 48 (Main Street)
		32	Dayton International Airport Access Road – Dayton International Airport
		33	I-75 – Dayton, Cincinnati, Toledo	Signed as exits 33A (south) and 33B (north)
		36	SR 202 (Old Troy Pike)
		38	SR 201 (Brandt Pike)
		41	SR 4 west / SR 235	West end of SR 4 overlap; signed as exits 41A (south) and 41B (north) eastbound
Clark		41	SR 4 west / SR 235
		44	I-675 / Spangler Road – Cincinnati, Springfield	Signed as exits 44A (south) and 44B (north) eastbound
		47	SR 4 east	East end of SR 4 overlap; westbound exit is via exit 48
		48	Enon Road – Enon	Eastbound exit is via exit 47
	Beatty, Sunnyland	52	US 68	Signed as exits 52A (south) and 52B (north)
	Limecrest	54	SR 72 (Limestone Street)
	Thorps	59	SR 41 (Charleston Pike)
	Harmony	62	US 40 (National Road)
	South Vienna	66	SR 54 (Urbana Street)
Madison	Summerford	72	SR 56
	Lafayette, Gillivan	79	US 42
		80	SR 29
	West Jefferson	85	SR 142
Franklin	Rome	91	Hilliard Rome Road	Signed as exits 91A (south) and 91B (north) westbound
	Columbus	93	I-270 – Cincinnati, Cleveland	Signed as exits 93A (south) and 93B (north) eastbound
		94	Wilson Road
		95	Hague Avenue, Fisher Road	Westbound exit and eastbound entrance
		96	I-670 east – Airport	Eastbound left exit and westbound entrance
		97	US 40 (Broad Street)
		98A	US 62 (Central Avenue) / SR 3 / Sullivant Avenue	Signed as exit 98 eastbound; eastbound exit is via exit 97
		98B	Mound Street	Westbound exit and eastbound entrance
		99	I-71 south / SR 315 north – Cincinnati	West end of I-71 overlap; signed as exits 99A (south) and 99B (north)
		99C	US 62 (Town Street) / SR 3 / Rich Street	Westbound exit and eastbound entrance
		100A	Fullton Street, Front Street, Mound Street	Eastbound exit and westbound entrance
		100B	US 23 (4th Street) / US 33 (Livingston Avenue)	Signed as exit 100 westbound
		101A	I-71 north – Cleveland	East end of I-71 overlap; signed as exit 101 westbound
		101B	Mooberry Street	Eastbound exit only
		102	Mooberry Street, Cole Street
		103A	US 33 (Livingston Avenue) / Alum Creek Drive	Signed as exit 103 westbound; no eastbound entrance
		103B	Alum Creek Drive	Eastbound exit and entrance
		105A	US 33 (College Avenue)	Eastbound exit and westbound entrance
		105B	James Road	Signed as exits 105A (south) and 105B (north) westbound
		107	SR 317 (Hamilton Road)	Signed as exits 107A (south) and 107B (north) eastbound
		108	I-270 – Cincinnati, Cleveland	Signed as exits 108A (south) and 108B (north) westbound
	Brice	110	Brice Road – Brice	Signed as exits 110A (south) and 110B (north) eastbound
Fairfield		112	SR 256 (Reynoldsburg Baltimore Road)	Signed as exits 112A (south) and 112B (north) eastbound
Fairfield		112C	Taylor Road	Eastbound exit only
Licking	Etna	118	SR 310
	Kikersville	122	SR 158 (Baltimore Road)
	Luray	126	SR 37 (Lancaster Road)
	Hebron, Buckeye Lake	129	SR 79 (Hebron Road)	Signed as exits 129A (south) and 129B (north)
	Jacksontown, Edgewater Beach	132	SR 13 (Jacksontown Road)
	Brownsville	141	SR 668 (Brownsville Road)	Eastbound exit and westbound entrance
Muskingum	Gratiot	142	Mt. Perry Road	Westbound exit and eastbound entrance
		152	US 40 (National Road)
	West Zanesville	153A	Liberty Street, State Street, Blue Street	Signed as exit 153 eastbound
	West Zanesville	153B	Maple Avenue	Westbound exit and eastbound entrance
	Zanesville	154	5th Street, 6th Street, Elberon Avenue	Eastbound exit and westbound entrance
	Zanesville	155	SR 60 (Underwood Street) / SR 146
	Pleasant Grove	157	SR 93 (Pleasant Grove Road)
		160	Sonora Road
		164	US 22 / US 40
	New Concord	169	SR 83 (Friendship Drive)
Guernsey	Fairdale	176	SR 723 north
		178	SR 209 (Southgate Parkway)
		180	I-77 – Marietta, Cambridge, Cleveland	Signed as exits 180A (south) and 180B (north)
	Old Washington	186	US 40 west (National Road) / SR 285 (Wintergreen Road)	West end of US 40 overlap
	Middlebourne	193	SR 513 (Batesville Road)
	Fairview	198	CR 114 (Fairview Road) / Old National Road, Fair Avenue, Oxford Road	Former US 40 east
Belmont	Fairview	198		Former US 40 east
	Hendrysburg	202	SR 800 (Hendrysburg Road) / CR 102 (Mt. Olivett Road)	Former US 40 west
		204	US 40 east (National Road) / McMillan Road	East end of US 40 overlap; eastbound exit and westbound entrance
	Morristown	208	SR 149
	Great Western	213	US 40 (National Road) / SR 331
	East Richland, St. Clairsville	215	US 40 (National Road)
	St. Clairsville	216	SR 9
	St. Clairsville	218	Mall Road
		219	I-470 east – Wheeling	Eastbound exit and westbound entrance
	Blaine	220	US 40 (National Road) / Bellaire High Ridge Road
	Aetnaville, Bridgeport	225	Marion Street