# Arkansas Highway 18

Arkansas Highway 18 (AR 18) is a designation for two state highways in northeast Arkansas. One segment of 0.93 miles (1.50 km) runs from Highway 69 east of Jacksonport east to Highway 17 in Diaz. A second segment of 92.83 miles (149.40 km) runs from Highway 17 in Diaz east to the Mississippi River.

## Route description
### Jacksonport to Diaz

Highway 18 begins at Highway 69 east of Jacksonport and heads north for 0.93 miles (1.50 km) until it reaches the intersection of Highway 17 in Diaz, where it terminates.

### Diaz to Misssissippi River

The route begins at Highway 17 in Diaz and runs east, before meeting I-57/US 67 in Newport. Highway 18 continues east to Highway 37 in Grubbs before turning north at Uno to US 78/Highway 226 in Cash. The route joins Highway 91 and becomes King's Highway.
Highway 18/Highway 91 run together with US 63 into Jonesboro. Highway 18 breaks and runs as Highland Drive, meeting US 49/Highway 1. Then later, it meets US 78 again, but this time is where it begins concurrency with. After Jonesboro, US 78/Highway 18 meets Highway 158 and Highway 135 in Lake City. The four routes continue east to Black Oak, when US 78/Highway 18 turns north. US 78/Highway 18 meets Highway 139 in Monette before continuing east. Highway 18B is created in Manila, and US 78/Highway 18 meets Highway 77.
Both routes briefly meets Highway 181 near Dell before turning northeast to Blytheville. US 78/Highway 18 meet Highway 151 and US 61 in downtown Blytheville. The route continues east to cross over I-55 (exit 67) in a frontage road interchange where US 78 departs from the highway to enter I-55. Highway 18 and Highway 312 meet briefly south of the Blytheville Municipal Airport. The route continues east to terminate at the Mississippi River.

## Major intersections

Mile markers reset at some concurrencies.
| County | Location | mi | km | Exit | Destinations | Notes |
| Jackson | ​ | 0.000 | 0.000 | | AR 69 – Newport, Newark | Western terminus |
| Jackson | Diaz | 0.931 | 1.498 | | AR 17 – Diaz, Newport | Eastern terminus |
| Gap in route |||||||
| Jackson | Diaz | 0.00 | 0.00 | | AR 17 north | Western terminus; southern terminus of AR 18 |
| Jackson | Newport–Diaz line | | | | AR 367 – Hoxie, Walnut Ridge, Newport | Former US 67 |
| Jackson | Newport–Diaz line | | | | I-57 / US 67 – Jonesboro, Bald Knob, Little Rock | Exit 85 on I-57 |
| Jackson | Newport–Diaz line | | | | AR 267 south (Commerce Boulevard) | Northern terminus of AR 267 |
| Jackson | Newport | | | | AR 980 – Airport, Arkansas State University-Newport | |
| Jackson | ​ | | | | AR 18S west – Newport Airport, Arkansas State University-Newport | Eastern terminus of AR 18S |
| Jackson | ​ | | | | AR 384 west – Stegall | Eastern terminus of AR 384 |
| Jackson | Grubbs | | | | AR 37 north – Tuckerman | Western end of AR 37 concurrency |
| Jackson | ​ | | | | AR 37 south to AR 14 | Eastern end of AR 37 concurrency |
| Poinsett | Uno | | | | AR 214 east to US 49 – Bayou DeView WMA | Western terminus of AR 214 |
| Craighead | Cash | | | | US 78 / AR 226 to US 67 – Jonesboro | |
| Craighead | Three Way | 30.58 | 49.21 | | AR 91 north | Western end of AR 91 concurrency |
| Craighead | Module:Jctint/USA warning: Unused argument(s): ctdab | | | |
| Craighead | Herman | | | AR 349 south – Gibson | Northern terminus of AR 349 |
| Craighead | Jonesboro | | | Western end of freeway section | Western end of freeway section | Western end of freeway section |
| Craighead | Jonesboro | | | 49 | I-555 north / US 63 north / AR 91 south (Dan Avenue) – Walnut Ridge, Hoxie, Hardy | Eastern end of AR 91 concurrency; western end of I-555/US 63 concurrency |
| Craighead | Jonesboro | | | 47 | Washington Avenue | |
| Craighead | Jonesboro | | | 46 | AR 226 west (Wood Springs Road) / Strawfloor Road | Eastern terminus of AR 226 |
| Craighead | Jonesboro | 0.00 | 0.00 | 45 | I-555 south / US 49 / US 63 south / US 78 (Southwest Drive) – Memphis, Waldenburg, Brinkley, Craighead Forest Park | Eastern end of I-555/US 63 concurrency |
| Eastern end of freeway section |||
| Craighead | Jonesboro | | | | AR 1B south to I-555 | Northern terminus of AR 1B |
| Craighead | Jonesboro | | | | US 49 (Red Wolf Boulevard) | |
| Craighead | Jonesboro | | | | AR 351 south (Industrial Drive) | Northern terminus of AR 351 |
| Craighead | Jonesboro | | | | AR 18S west (US 78 west) | Western end of US 78 concurrency; eastern terminus of AR 18S |
| Craighead | Lake City | | | | AR 158 west – Lunsford | Eastern terminus of AR 158 |
| Craighead | Lake City | | | | AR 135 north – Paragould | Southern terminus of AR 135 |
| Craighead | Black Oak | | | | AR 135 south – Caraway, Lepanto | Northern terminus of AR 135 |
| Craighead | Monette | | | | AR 139 north (Edmonds Street) | Southern terminus of AR 139 |
| | Monette | | AR 139 south – Caraway | | Northern terminus of AR 139 |
| Mississippi | Leachville | | | | AR 119 north to AR 77 – Leachville | Southern terminus of AR 119 |
| Mississippi | Manila | | | | AR 18B east (West Lake Street) – Manila Business District | Western terminus of AR 18B; former AR 77 |
| Mississippi | Manila | 35.10 | 56.49 | | AR 77 north – Leachville | Southern terminus of AR 7 |
| Mississippi | Manila | | | | AR 77 south – Athelstan | Northern terminus of AR 77 |
| Mississippi | ​ | | | | AR 181 south – Victoria | Northern terminus of AR 181 |
| Mississippi | Dell | | | | AR 181 north – Dell Business District | Southern terminus of AR 181 |
| Mississippi | ​ | | | | AR 312 east | Western terminus of AR 312 |
| Mississippi | ​ | | | | AR 239 north – Half Moon | Southern terminus of AR 239 |
| Mississippi | Blytheville | | | | AR 151 north – Gosnell | Southern terminus of AR 151 |
| Mississippi | Blytheville | 53.16 | 85.55 | | US 61 (Division Street) to I-55 – Blytheville Business District | |
| Mississippi | Blytheville | | | | AR 239 south (Ruddle Street) | Northern terminus of AR 239 |
| Mississippi | Blytheville | 55.73 | 89.69 | | I-55 / US 78 east – St. Louis, Memphis | Eastern end of US 78 concurrency; exit 67 on I-55 |
| Mississippi | Blytheville | | | | AR 151 south (South Promise Land Road) | Northern terminus of AR 151 |
| Mississippi | Blytheville | | | | AR 980 – Airport | |
| Mississippi | ​ | | | | AR 312 east – Number Nine | Western terminus of AR 312 |
| Mississippi | ​ | | | | AR 137S north – Armorel | Southern terminus of AR 137S |
| Mississippi | Barfield | 62.25 | 100.18 | | Mississippi River | Eastern terminus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus |||||||

## History

Highway 18 was created during the 1926 Arkansas state highway numbering from Diaz to Barfield similar to the present-day alignment. The designation was shifted onto Nettleton Cut-Off Road in Jonesboro on March 9, 1955. The highway was rerouted between Leachville and Manilla on July 10, 1957, with Highway 18 taking over the former alignment of Highway 18S. It was extended to the Mississippi River on April 24, 1963, as part of a major expansion of the state highway system.