Interstate 70 in Ohio

{{Infobox road

|state=OH

|type=I

|route=70

|map={{maplink-road}}

|map_custom=yes

|map_notes=I-70 highlighted in red

|established=1956

|length_mi=225.60

|length_round=2

|length_ref={{cite web|url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/?redirect|title=Route Log- Main Routes of the Eisenhower National System of Interstate and Defense Highways - Table 1|publisher=Federal Highway Administration|access-date=October 4, 2014}}

|direction_a=West

|terminus_a={{Jct|state=IN|I|70|US|35}} at Indiana state line

|junction={{plainlist|

{{Jct|state=OH|I|75}} near Vandalia
{{Jct|state=OH|I|675}} near Springfield
{{Jct|state=OH|I|270}} in Columbus twice
{{Jct|state=OH|I|670}} in Columbus
{{Jct|state=OH|I|71|SR|315}} in Columbus
{{Jct|state=OH|I|77}} near Cambridge
{{Jct|state=OH|I|470}} near St. Clairsville

}}

|direction_b=East

|terminus_b={{Jct|state=WV|I|70}} at West Virginia state line

|counties=Preble, Montgomery, Clark, Madison, Franklin, Fairfield, Licking, Muskingum, Guernsey, Belmont

|previous_type=OH 1960

|previous_route=69

|next_type=OH 1960

|next_route=70

|next_dab=1923

}}

Interstate 70 (I-70) in the US state of Ohio provides access between Indiana and West Virginia. I-70 is a major highway for traffic within, to, from, and through Ohio. The highway is a core roadway of the Columbus metropolitan area and is of additional importance in the Dayton metropolitan area.

Route description

Along its path through Ohio, I-70 passes through the following counties: Preble, Montgomery, Clark, Madison, Franklin, Fairfield, Licking, Muskingum, Guernsey, and Belmont. As an Interstate Highway, by default, I-70 is a part of the National Highway System, a network of highways deemed most important for the country's economy, mobility, and defense.{{cite map | title=National Highway System: Ohio | date=December 2003 | publisher=Federal Highway Administration | url=http://www.fhwa.dot.gov/planning/nhs/maps/oh/oh_Ohio.pdf | archive-url=https://web.archive.org/web/20081016165827/http://www.fhwa.dot.gov/planning/nhs/maps/oh/oh_Ohio.pdf | url-status=dead | archive-date=October 16, 2008 | format=PDF|access-date=January 24, 2011}}

File:Interstate 70 Columbus Ohio.jpg

The portion of I-70 between I-675 and Enon Road in Clark County is designated as the "Deputy Suzanne Hopper Memorial Highway",{{cite web | url = http://codes.ohio.gov/orc/5533.648 | title = 5533.648 Deputy Suzanne Hopper Memorial Highway | work = Ohio Revised Code | publisher = LAW Writer | date = March 22, 2013 | access-date = August 25, 2013}} in honor of a Clark County Sheriff's deputy who was shot and killed on January 1, 2011, while responding to reports of gunshots at a mobile home park on Enon Road, near I-70.{{cite news | url = http://www.springfieldnewssun.com/news/news/local/slain-clark-deputy-memorialized/nZbJq/ | title = Slain Clark deputy memorialized | newspaper = Springfield News-Sun | last = Heffner | first = Jessica | date = August 23, 2013 | access-date = August 25, 2013}}

The portion of I-70 between milemarkers 51 and 53 in Clark County is designated as the "Trooper Charles V. Vogel, Jr. Memorial Highway",{{cite web | url = http://codes.ohio.gov/orc/5533.679 | title = Section 5533.679 Trooper Charles V. Vogel, Jr. Memorial Highway | work = Ohio Revised Code | publisher = Ohio Legislative Service Commission | date = March 23, 2015 | access-date = May 2, 2021}} in honor of a trooper with the Springfield post of the Ohio State Highway Patrol who was struck and killed by a vehicle on January 24, 1980, while investigating a crash at the junction of I-70 and U.S. Route 68 (US 68; which is located along the designated stretch of highway).{{cite news | url = https://www.daytondailynews.com/news/local/part-clark-may-honor-slain-trooper/CbNftKLoTvBvPeccWqHLQL/ | title = Part of I-70 in Clark Co. may honor slain trooper | newspaper = Dayton Daily News | date = November 12, 2014 | access-date = May 2, 2021}}

= Western Ohio =

I-70's first exit within Ohio is in New Westville, just south of New Paris. The exit is only accessible eastbound, and traffic going on to I-70 using the exit-only enters westbound lanes. I-70 goes on to pass Gettysburg before making two exits near Lewisburg, one at a junction with US 127 and another near downtown Lewisburg. I-70 also makes an exit in Brookville and runs concurrent with State Route 49 (SH 49) for just under {{Convert|1.5|mi|km}} before SH 49 continues to the southeast.

At this point, I-70 comes its closest to Dayton and primarily serves rural suburbs. Within the northern Dayton section of I-70, a separate series of ramps serves traffic to Dayton International Airport before entering a major intersection with I-75 just south of Vandalia. From there, I-70 continues to serve northern Dayton suburbs and also junctions the SH 4 expressway, which runs concurrent with I-70 between Wright-Patterson Air Force Base and Enon, and I-675, a bypass route of Downtown Dayton.

After another interchange with US 68, I-70 passes south of Springfield and serves three exits, the easternmost of which serves as one of the many junctions I-70 has with the National Road (today known as US 40).

= Central Ohio =

File:I-70 at US 33, Columbus, Ohio.jpg

I-70 is a major freeway within the Columbus metropolitan area, serving as the primary east–west route. After brief exits just outside the towns of Summerford and West Jefferson, I-70 reaches the southern part of Hilliard, where I-70 makes its first junction with I-270, a ring road around the Columbus area primarily serving its suburbs. Between the I-270 interchanges on I-70, hazmats are prohibited. I-70 continues toward Downtown Columbus and, upon entering Valleyview, reaches I-670, a highway serving north-central Columbus as well as both Easton Town Center and John Glenn Columbus International Airport. I-70 itself continues south and meets up with I-71 and SH 315 in a major interchange to the east of Franklinton. For just over {{Convert|1.5|mi|km}}, I-71 and I-70 run concurrently in south Downtown Columbus before I-70 separates and continues east for about {{Convert|9|mi|km|spell=in}} before reaching I-270's eastern interchange with I-70, but not before serving three exits in the Bexley area and an interchange with US 33. Throughout the rest of the route in central Ohio, I-70 serves state routes and rural towns like Kirkersville and Buckeye Lake.

I-70 is also the only major expressway within the Zanesville area and bisects the central business district and serves the area with exits to both the central business district and Zanesville Municipal Airport. Once I-70 passes outside of Zanesville, the road connects with Norwich and New Concord, the latter of which also includes Muskingum University and the John and Annie Glenn Museum.

= Eastern Ohio =

Running roughly parallel with both US 22 and US 40, I-70 passes through New Concord to serve Cambridge, which is also where I-70 interchanges with I-77. Between the I-77 interchange and St. Clairsville, I-70 is a rural highway with few exits serving small towns along its path.

In St. Clairsville, I-70 connects with the Ohio Valley Mall and is less than {{Convert|10|mi|km}} from Wheeling, West Virginia. Eastbound traffic can either continue on I-70 toward Wheeling's central business district or use I-470 as a bypass of Wheeling. I-70 itself serves a few more exits in Wheeling's western area before crossing the Fort Henry Bridge and the state line into downtown Wheeling.

History

I-70 appeared on the original American Association of State Highway and Transportation Officials (AASHTO) interstate route numbering map from August 14, 1957. It was envisioned as a modern upgrade of the old National Road (US 40), the main east–west route through the heart of the state, built closely parallel to, but on a separate alignment from, the then overburdened and obsolete highway. The {{convert|21|mi|km|adj=on}} section between Kirkersville and Gratiot (current exits 122–142) was the first new construction opened to traffic in 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.

File:Ohio158Interstate70.jpg

Once the road was extended westward toward Columbus by 1968, access was routed to exit 122, with the western {{convert|1|mi|km|adj=on|spell=in}} access road continuing US 40 back to the old National Pike becoming part of SR 158 (though the westbound lanes were abandoned), with SH 158's old alignment north of the access road being turned over to Licking County. 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 SR 440 designation.

In February 2013, an {{convert|11.18|mi|km|adj=on}} segment of I-70 traveling through Franklin, Fairfield, and Licking counties was named by the National Asphalt Pavement Association as the winner of the 2012 Sheldon G. Hayes Award for the best asphalt pavement in the country.{{cite news | title = The Shelly Co. Wins NAPA's Sheldon G. Hayes Award | date = February 13, 2013 | url = http://www.forconstructionpros.com/press_release/10878819/the-shelly-co-wins-napas-sheldon-g-hayes-award | work = ForConstructionPros.com | access-date = February 18, 2013}}{{cite web | url = http://www.asphaltpavement.org/index.php?option=com_content&view=article&id=831&Itemid=100160 | title = Sheldon G. Hayes Award Through the Years | access-date = February 13, 2013 | author = National Asphalt Pavement Association}}

Exit list

{{Jcttop|exit|length_ref={{cite web |url=http://www.dot.state.oh.us/Divisions/Planning/TechServ/TIM/Pages/DESTAPE.aspx|title=Technical Services DESTAPE |author=Ohio Department of Transportation |author-link=Ohio Department of Transportation |access-date=May 19, 2014}}}}

{{OHint|exit

|county=Preble

|cspan=4

|location=Jefferson Township

|ctdab=Preble

|lspan=2

|mile=0.00

|road={{Jct|state=IN|I|70|dir1=west|US|35|dir2=north|city1=Indianapolis}}

|notes=Continuation into Indiana}}

{{OHint|exit

|type=concur

|mile=1.83

|exit=1

|road={{Jct|state=OH|US|35|dir1=east|city1=Eaton}}

|notes=Eastern end of US 35 concurrency; eastbound exit and westbound entrance}}

{{OHint|exit

|township=Monroe

|ctdab=Preble

|mile=9.91

|exit=10

|road={{Jct|state=OH|US|127|city1=Greenville|city2=Eaton}}

}}

{{OHint|exit

|township=Harrison

|ctdab=Preble

|mile=14.66

|exit=14

|road={{Jct|state=OH|SR|503|city1=West Alexandria|city2=Lewisburg}}

}}

{{OHint|exit

|county=Montgomery

|cspan=8

|location=Brookville

|mile=21.01

|exit=21

|road=Arlington Road – Brookville

}}

{{OHint|exit

|township=Clay

|ctdab=Montgomery

|type=concur

|mile=23.71

|mile2=24.05

|exit=24

|road={{Jct|state=OH|SR|49|dir1=north|city1=Phillipsburg|city2=Greenville}}

|notes=Western end of SR 49 concurrency; eastbound access to SR 49 via Brookville Salem Pike}}

{{OHint|exit

|location1=Clayton

|location2=Englewood

|type=concur

|mile=25.88

|mile2=26.26

|exit=26

|road={{Jct|state=OH|SR|49|dir1=South|city1=Clayton|city2=Trotwood}}

|notes=Eastbound signage; eastern end of SR 49 concurrency

Westbound signage}}

{{OHint|exit

|location=Englewood

|mile=28.97

|exit=29

|road={{Jct|state=OH|SR|48|city1=Englewood|city2=Clayton}}

}}

{{OHint|exit

|township=Butler

|ctdab=Montgomery

|lspan=2

|mile=32.08

|exit=32

|road={{Jct|state=OH|US|40|to1=y|extra=airport|city1=Vandalia|location2=Dayton International Airport}}

}}

{{OHint|exit

|mile=33.72

|mile2=33.97

|exit=33

|road={{Jct|state=OH|I|75|city1=Dayton|city2=Toledo}}

|notes=Signed as exits 33A (south) and 33B (north) eastbound; I-75 north exit 61; south exits 61A-B}}

{{OHint|exit

|location=Huber Heights

|lspan=3

|mile=36.67

|exit=36

|road={{Jct|state=OH|SR|202|city1=Huber Heights}}

}}

{{OHint|exit

|mile=38.64

|exit=38

|road={{Jct|state=OH|SR|201|city1=Huber Heights}}

}}

{{OHint|exit

|county1=Montgomery

|county2=Clark

|type=concur

|mile=41.00

|exit=41

|road={{Jct|state=OH|SR|4|dir1=South|SR|235|city1=Fairborn|city2=New Carlisle}}

|notes=Western end of SR 4 concurrency

}}

{{OHint|exit

|county=Clark

|cspan=8

|township=Mad River

|ctdab=Clark

|lspan=3

|mile=44.33

|exit=44

|road={{Jct|state=OH|I|675|dir1=South|road|Spangler Road|city1=Cincinnati}}

|notes=I-675 exits 26A-B; northern terminus of I-675; signed as exits 44A (I-675 south) and 44B (Spangler Road) on collector-distributor lanes}}

{{OHint|exit

|type=concur

|mile=47.29

|exit=47

|road={{Jct|state=OH|SR|4|city1=Enon|city2=Springfield}}

|notes=Eastern end of SR 4 concurrency; Eastbound exit and westbound entrance}}

{{OHint|exit

|type=incomplete

|mile=47.79

|exit=48

|road=Enon, Donnelsville

|notes=Westbound exit and eastbound entrance}}

{{OHint|exit

|township1=Mad River

|township2=Springfield

|ctdab=Clark

|mile=52.23

|exit=52

|road={{Jct|state=OH|US|68|city1=Xenia|city2=Urbana}}

|notes=Signed as exits 52A (south) and 52B (north)}}

{{OHint|exit

|location=Springfield

|lspan=2

|mile=54.47

|exit=54

|road={{Jct|state=OH|SR|72|city1=Springfield|City2=Cedarville}}

}}

{{OHint|exit

|mile=59.36

|exit=59

|road={{Jct|state=OH|SR|41|city1=South Charleston}}

}}

{{OHint|exit

|township=Harmony

|ctdab=Clark

|mile=62.02

|exit=62

|road={{Jct|state=OH|US|40|city1=Springfield}}

|notes=}}

{{OHint|exit

|location=South Vienna

|mile=66.33

|exit=66

|road={{Jct|state=OH|SR|54|city1=Catawba|city2=South Vienna}}

}}

{{OHint|exit

|county=Madison

|cspan=4

|township=Somerford

|ctdab=Madison

|mile=72.36

|exit=72

|road={{Jct|state=OH|SR|56|city1=Mechanicsburg|city2=London}}

}}

{{OHint|exit

|township=Deer Creek

|ctdab=Madison

|mile=79.10

|exit=79

|road={{Jct|state=OH|US|42|city1=Plain City|city2=London}}

}}

{{OHint|exit

|township=Jefferson

|ctdab=Madison

|lspan=2

|mile=80.76

|exit=80

|road={{Jct|state=OH|SR|29|city1=West Jefferson}}

}}

{{OHint|exit

|mile=85.39

|exit=85

|road={{Jct|state=OH|SR|142|name1=Plain City–Georgesville Road|city1=West Jefferson|city2=Plain City}}

}}

{{OHint|exit

|county=Franklin

|cspan=23

|location=Columbus

|lspan=23

|mile=91.30

|exit=91

|road=Hilliard-Rome Road

|notes=Signed as exits 91A (south) and 91B (north) westbound}}

{{OHint|exit

|mile=92.82

|mile2=92.94

|exit=93

|road={{Jct|state=OH|I|270|city1=Cincinnati|city2=Cleveland}}

|notes=Signed as exits 93A (south) and 93B (north) eastbound; I-270 exit 8}}

{{OHint|exit

|mile=93.98

|exit=94

|road=Wilson Road

}}

{{OHint|exit

|type=incomplete

|mile=94.97

|exit=95

|road=Hague Avenue

|notes=Westbound exit and eastbound entrance}}

{{OHint|exit

|type=incomplete

|mile=96.15

|exit=96

|road={{Jct|state=OH|I|670|dir1=east|location1=Airport|extra=airport}}

|notes=Eastbound exit and westbound entrance}}

{{OHint|exit

|mile=97.25

|exit=97

|road={{Jct|state=OH|US|40|name1=W. Broad Street}}

}}

{{OHint|exit

|type=incomplete

|mile=97.82

|mile2=98.02

|exit=98A

|road={{Jct|state=OH|US|62|SR|3|name1=Central Avenue|road|Sullivant Avenue}}

|notes=Westbound exit and eastbound entrance}}

{{OHint|exit

|mile=98.27

|exit=98B

|road=Mound Street

|type=incomplete

|notes=Westbound exit and eastbound entrance

}}

{{OHint|exit

|type=incomplete

|mile=98.86

|mile2=99.44

|mspan=2

|exit=99C

|road=Rich Street / Town Street ({{jct|state=OH|US|62|SR|3|noshield=yes}})

|notes=Access via SR 315; westbound exit only; SR 315 exit 1A

}}

{{OHint|exit

|type=concur

|mile=none

|exit=99

|road={{Jct|state=OH|I|71|dir1=South|SR|315|dir2=North|city1=Cincinnati}}

|notes=Western end of I-71 concurrency; signed as exits 99A (south) and 99B (north); I-71 exit 106A}}

{{OHint|exit

|mile=99.98

|exit=100

|type=incomplete

|road={{jct|state=OH|US|23|name1=Third Street / Fourth Street|road|Fulton Street}}

|notes=Replaces exits 100A-B; has no westbound exit

}}

{{OHint|exit

|type=closed

|mile=99.99

|exit=100A

|road={{Jct|state=OH|US|23|dir1=South|name1=High Street|road|Front Street}}

|notes=Closed after opening of new exit 100; was eastbound exit and westbound entrance}}

{{OHint|exit

|type=closed

|mile=100.23

|mile2=100.33

|exit=100B

|road={{Jct|state=OH|US|23|dir1=North|US|33|name2=3rd & 4th Streets|road|Livingston Avenue}}

|notes=Closed after opening of new exit 100; had no westbound exit

}}

{{OHint|exit

|type=incomplete

|mile=100.91

|mile2=101.28

|mspan=3

|exit=101B

|road=Parsons Avenue

|notes=Eastbound exit only

}}

{{OHint|exit

|type=concur

|mile=none

|exit=101A

|road={{Jct|state=OH|I|71|dir1=North|to2=to|I|670|city1=Cleveland|extra=airport}}

|notes=Eastern end of I-71 concurrency; I-71 exit 107; access to John Glenn Columbus International Airport}}

{{OHint|exit

|type=incomplete

|mile=none

|exit=101B

|road=Downtown

|notes=Westbound exit and eastbound entrance; eastbound exit was signed for 18th Street, closed in 2020}}

{{OHint|exit

|mile=102.10

|mile2=102.21

|exit=102

|road=Miller Avenue / Kelton Avenue}}

{{OHint|exit

|mile=103.04

|exit=103A

|road=Main Street — Bexley

|type=incomplete

|notes=Eastbound exit and westbound entrance; indirect access via Alum Creek Drive}}

{{OHint|exit

|mile=103.403

|mile2=103.513

|exit=103B

|road={{Jct|state=OH|US|33|name1=Livingston Avenue|road|Alum Creek Drive}}

|notes=Alum Creek Drive signed eastbound only, US 33 signed westbound only}}

{{OHint|exit

|mile=104.603

|mile2=105.613

|exit=105

|road={{Jct|state=OH|US|33|city1=Lancaster|road|James Road|city2=Bexley}}

|notes=Signed as exits 105A (south) and 105B (north)}}

{{OHint|exit

|mile=107.163

|mile2=107.633

|exit=107

|road={{Jct|state=OH|SR|317|name1=Hamilton Road|city1=Whitehall}}

|notes=Signed as exits 107A (south) and 107B (north) eastbound}}

{{OHint|exit

|mile=108.393

|mile2=109.213

|exit=108

|road={{Jct|state=OH|I|270|city1=Cincinnati|city2=Cleveland}}

|notes=Signed as exits 108A (south) and 108B (north) westbound; I-270 exits 43A-B.}}

{{OHint|exit

|mile=109.823

|mile2=110.183

|exit=110

|road=Brice Road — Reynoldsburg

|notes=Signed as exits 110A (south) and 110B (north) eastbound}}

{{OHint|exit

|county=Fairfield

|cspan=2

|location=Pickerington

|mile=112.023

|mile2=112.403

|exit=112

|road={{Jct|state=OH|SR|256|city1=Pickerington|city2=Reynoldsburg}}

|notes=Signed as exits 112A (south) and 112B (north) eastbound, exit 112 westbound}}

{{OHint|exit

|township=Violet

|ctdab=Fairfield

|type=incomplete

|mile=112.923

|exit=112C

|road={{Jct|state=OH|SR|204|name1=Blacklick–Eastern Road}}

|notes=Eastbound exit only}}

{{OHint|exit

|county=Licking

|cspan=6

|township=Etna

|ctdab=Licking

|mile=118.053

|mile2=118.373

|exit=118

|road={{Jct|state=OH|SR|310|location1=Etna|city2=Pataskala}}

}}

{{OHint|exit

|location=Kirkersville

|mile=122.373

|mile2=122.753

|exit=122

|road={{Jct|state=OH|SR|158|city1=Kirkersville|city2=Baltimore}}

}}

{{OHint|exit

|township=Union

|ctdab=Licking

|lspan=2

|mile=125.893

|mile2=126.913

|exit=126

|road={{Jct|state=OH|SR|37|city1=Granville|city2=Lancaster}}

}}

{{OHint|exit

|mile=128.683

|mile2=129.263

|exit=129

|road={{Jct|state=OH|SR|79|city1=Buckeye Lake|city2=Newark}}

}}

{{OHint|exit

|township=Licking

|ctdab=Licking

|mile=132.643

|mile2=132.973

|exit=132

|road={{Jct|state=OH|SR|13|city1=Newark|city2=Thornville}}

}}

{{OHint|exit

|township=Bowling Green

|ctdab=Licking

|type=incomplete

|mile=140.763

|mile2=140.903

|exit=141

|road={{Jct|state=OH|SR|668|city1=Brownsville|city2=Gratiot}}

|notes=Eastbound exit and westbound entrance

}}

{{OHint|exit

|county=Muskingum

|cspan=10

|township=Hopewell

|ctdab=Muskingum

|type=incomplete

|mile=142.883

|mile2=143.198

|exit=142

|road={{Jct|state=OH|to1=To|US|40|city1=Gratiot}}

|notes=Westbound exit and eastbound entrance}}

{{OHint|exit

|township=Falls

|ctdab=Muskingum

|mile=152.168

|mile2=152.820

|exit=152

|road={{Jct|state=OH|US|40|city1=Zanesville|name1=National Road}}

}}

{{OHint|exit

|location=Zanesville

|lspan=4

|mile=153.359

|exit=153A

|road={{Jct|state=OH|SR|60|dir1=North|SR|146|dir2=West|name2=State Street}}

|notes=Signed as exit 153 eastbound}}

{{OHint|exit

|type=incomplete

|exit=153B

|mile=154.203

|mile2=154.416

|road=Maple Avenue

|notes=Westbound exit and eastbound entrance}}

{{OHint|exit

|type=incomplete

|mile=154.528

|mile2=154.643

|exit=154

|road=Fifth Street

|notes=Eastbound exit only}}

{{OHint|exit

|mile=154.661

|mile2=154.703

|exit=155

|road={{Jct|state=OH|SR|60|dir1=South|SR|146|dir2=East|SR|666|dir3=north|name1=Seventh Street}}

}}

{{OHint|exit

|township=Washington

|ctdab=Muskingum

|mile=156.921

|mile2=157.446

|exit=157

|road={{Jct|state=OH|SR|93|city1=Adamsville|city2=Zanesville}}

}}

{{OHint|exit

|township=Perry

|ctdab=Muskingum

|lspan=2

|mile=160.391

|mile2=160.977

|exit=160

|road=Airport Road / Sonora Road

|notes=Access to Zanesville Municipal Airport}}

{{OHint|exit

|mile=163.905

|mile2=164.548

|exit=164

|road={{Jct|state=OH|US|22|US|40|city1=Norwich}}

}}

{{OHint|exit

|location=New Concord

|mile=169.585

|mile2=170.135

|exit=169

|road={{Jct|state=OH|SR|83|city1=Cumberland|city2=New Concord}}

}}

{{OHint|exit

|county=Guernsey

|cspan=5

|township=Cambridge

|ctdab=Guernsey

|lspan=3

|mile=175.903

|mile2=176.377

|exit=176

|road={{Jct|state=OH|US|22|US|40|city1=Cambridge|name2=SR 723}}

}}

{{OHint|exit

|mile=178.390

|mile2=178.970

|exit=178

|road={{Jct|state=OH|SR|209|city1=Cambridge|city2=Byesville}}

}}

{{OHint|exit

|mile=179.654

|mile2=180.474

|exit=180

|road={{Jct|state=OH|I|77|city1=Marietta|city2=Cleveland}}

|notes=Signed as exits 180A (south) and 180B (north); I-77 exits 44A-B}}

{{OHint|exit

|township=Wills

|ctdab=Guernsey

|type=concur

|mile=186.347

|mile2=187.020

|exit=186

|road={{Jct|state=OH|US|40|dir1=West|SR|285|city1=Old Washington|city2=Senecaville}}

|notes=Western end of US 40 concurrency}}

{{OHint|exit

|township=Oxford

|ctdab=Guernsey

|mile=193.053

|mile2=193.713

|exit=193

|road={{Jct|state=OH|SR|513|city1=Quaker City}}

}}

{{OHint|exit

|county1=Guernsey

|county2=Belmont

|location=Fairview

|mile=198.385

|mile2=198.887

|exit=198

|road=CR 114 – Fairview

}}

{{OHint|exit

|county=Belmont

|cspan=10

|township=Kirkwood

|ctdab=Belmont

|mile=202.357

|mile2=202.737

|exit=202

|road={{Jct|state=OH|SR|800|city1=Dennison|city2=Barnesville}}

}}

{{OHint|exit

|township1=Kirkwood

|township2=Union

|ctdab=Belmont

|type=concur

|mile=204.537

|mile2=204.747

|exit=204

|road={{Jct|state=OH|US|40|name1=National Road|road|CR 100}}

|notes=Eastern end of US 40 concurrency; eastbound exit and westbound entrance}}

{{OHint|exit

|township=Union

|ctdab=Belmont

|mile=208.057

|mile2=208.427

|exit=208

|road={{Jct|state=OH|SR|149|city1=Belmont|city2=Morristown}}

}}

{{OHint|exit

|township=Richland

|ctdab=Belmont

|lspan=6

|mile=212.707

|mile2=212.897

|exit=213

|road={{Jct|state=OH|US|40|SR|331}}

}}

{{OHint|exit

|mile=215.027

|mile2=215.457

|exit=215

|road={{Jct|state=OH|US|40|city1=St. Clairsville}}

}}

{{OHint|exit

|mile=216.667

|mile2=216.967

|exit=216

|road={{Jct|state=OH|SR|9|city1=St. Clairsville}}

}}

{{OHint|exit

|mile=218.367

|mile2=218.827

|exit=218

|road=Mall Road / Banfield Road}}

{{OHint|exit

|type=incomplete

|mile=219.607

|mile2=219.957

|exit=219

|road={{Jct|state=OH|I|470|city1=Bellaire|location2=Washington PA}}

|notes=Eastbound exit and westbound entrance}}

{{OHint|exit

|mile=219.937

|mile2=220.427

|exit=220

|road={{Jct|state=OH|US|40|name1=National Road|road|CR 214}}

}}

{{OHint|exit

|location=Bridgeport

|mile=225.117

|mile2=225.357

|exit=225

|road={{Jct|state=OH|to1=To|US|250|dir1=west|SR|7|city1=Bridgeport}}

}}

{{jctbridge|exit

|river=Ohio River

|lspan=2

|mile=225.587

|mspan=2

|place=Ohio–West Virginia line}}

{{jctint|exit

|mile=none

|road={{Jct|state=WV|I|70|dir1=east|US|250|dir2=south|city1=Wheeling}}

|notes=Continuation into West Virginia}}

Auxiliary routes

class="wikitable"

!Interstate

!City

!Type

!Notes

40px

|Interstate 270

| style="text-align:center;"| Columbus

|aligh="left" | Loop

40px

|Interstate 470

| style="text-align:center;"| Wheeling

|aligh="left" | Bypass

|Route extends into West Virginia

40px

|Interstate 670

| style="text-align:center;"| Columbus

|aligh="left" | Bypass

=Interstate 70 Alternate=

{{infobox road small

|state=OH

|type=I-Alt

|route=70

|location=Dayton

}}

Interstate 70 Alternate (I-70 Alt.) is an alternate route for I-70, bypassing several exits on I-70. It is {{convert|22|mi|km}} in length, following the Dayton International Airport Connector, US 40, and US 68.{{citation needed|date=January 2016}}